Pronunciation Guide:

Cymric vowels are long in stressed syllables.  Stress is on the next-to-last syllable and on longer words a lighter stress is on the first syllable to help move the word along.

(c) - Roughly English "k"
(w) - Roughly English "oo"
(dd) - Roughly English "th"
(ff) - Roughly English "f"
(f) - Roughly English "v"
(ll) - The 'Welsh Sound,' an aspirated 'l' sound.  Put the front of your tongue on the roof of your mouth and blow air out the sides, between your teeth.

From:  https://great-pendragon-campai...m/wikis/cymric-names

NAME VARIANTS DIMINUTIVES PRONUNCIATION MEANING, SOURCE
Aberthol “sacrifice”
Abloc
Adda Ada AH-tha Welsh form of Adam.
Adaf Addaf AH-daf
Addonwy
Adeon ah-DAY-on “wing”
Aed Aedd, Aeddan, Aeddon “fire,” “ardent”
Aelhaiarn Aelhaearn, Alouarn, Elhaearn ile-HAY-arn “an iron brow”
Aeron EYE-ron Name of a river in Ceredigion.
Afan Afen, Afon AH-van “river”, (1) river name, South-east Wales (2) saint’s name - Llanafan
Agned AHG-ned
Alan Alun, Alyn AL-an "deer", also an early Welsh saint, also a river in Flinshire
Alawn AH-lawn “harmony” or “harmony” depending on who you ask.
Alban Albon AL-bon
Aldyth Aldwyth AL-dith
Aldryd Aldrydd AL-drid
Aldwyn AL-dwin “old friend”
Alec AL-ek Welsh form of Alexander.
Aled Aleid AL-ed river name in in Denbighshire (North-east Wales)
Alwyn Alwin, Elwin, Elwyn AL-win “loved by all”
Amaethon ah-tha
Amig AM-ig
Amhar Amr AM-har Listed as a son of King Arthur in the sagas; vaguely hinted in the stories that he was killed by Arthur and buried in Wales at Licat Amir.
Amlodd AM-loth According to legend, the grandfather of King Arthur.
Amren AM-ren The son of Bedwyr in the King Arthur tales.
Anarand AN-arand
Anarawd an-AH-rawd arawd, “host” + an, an intensifying prefix.
Andreas Andras, Andros an-DRAY-us “man;” Welsh form of Andrew.
Aneirin Aneurin Neirin, Nye an-AY-rin nar, “noble/modest?”
Anfri “disgrace”
Angawdd The son of Caw in legends.
Anghrist AN-grist “antichrist”
Angor AN-gor “anchor”
Angwyn AN-gwin gwyn, “white, blessed, holy” + an an intensifying prefix.
Anian Anion AN-yan
Anir One of the sons of of King Arthur in the sagas; it’s vaguely hinted in the stories that he was killed by Arthur and buried in Wales at Licat Amir.
Anwar AN-war “wild”
Anwas AN-was The name of the father of Twrch in the ancient legends.
Anwil Anwel, Anwell, Anwill, Anwyl, Anwyll AN-wil “beloved”
Anwir AN-wir “liar”
Anynnawg The name of the son of Menw in the ancient legends.
Anyon “anvil”
Ap “son of”
Arawn The god of Annwn an-OON; the Underworld; but not associated with terror or eternal punishment. It later became the underground kingdom of the dead.
Arcol
Arddur
Ardwyad “protector”
Arglwydd “lord”
Arhtudd
Arial Aar EE al “strength, courage”
Arian ah-ree-AHN “silver”
Arianvagyl
Arianwyn ah-ree-AHN-win arian “silver” + gwyn “shining, holy”
Arllechwedd
Armagil
Armel
Arnallt AR-nahlt Welsh form of Arnold.
Aron AH-ron Welsh form of Hebrew Aaron.
Arthawd
Arthen Arthien, Arthian AR-then arth, “bear;” the name of a Celtic river god.
Arthfael Arthmael ARHT-vile arth, “bear;”+ mael, “prince”
Arthur Arthvawr, Arthwr AHR-thir artos “bear,” or possibly from Latin name Artorius. Name of the legendary king and culture hero of the Welsh, Cornish, and Bretons.
Arvan AHR-vahn
Arvel AHR-vuhl “wept over”
Arvor AHR-vor
Arwel AHR-wel “prominent”
Arwyn AR-win gwyn, “white, blessed, holy, fair” + ar, an intensifying prefix.
Arwystli
Asaph
Atha
Athan AH-than
Athrywys
Avagdu Afagddu “utter darkness,” the son of the goddess Cerridwen and god Tegid Foel.
Avalon Affalon AV-a-lon “apple island”
Avaon In Welsh tradition, the name of Taliesin’s son.
Awel Awell “breeze”
Awen
Awstin AWS-tun “august,” also a version of Austin, a contracted form of the Latin Augustinus.
Baden Baddon BAH-dun “one from Baden”
Baedden Badan, Badden BTE-than “boar”
Baines “bones”
Barnic
Barri BAHR-ee bar “mound, summit, dune,” or perhaps from the word for “boar.”
Barris Barrys BAHR-ees “son of Harry”
Barruc
Baudwin One of the later Knights of the Round Table, he came from Brittany and was a very skilled surgeon. He survived the battle of Camlan, and became a hermit.
Beda Welsh version of Bede, a famous monk and historian.
Bedo Diminutive the name Maredudd
Bedwyr Bedyvere, Bedivere BED-oo-eer The name of one of King Arthur’s companions to whom he sometimes entrusted Excalibur.
Bedyw The name of the son of Seithved in ancient tales.
Bedwyn BED-win bedw, “birch-tree” + gwr, “hero.”
Belenus Beli, Belinus Irish sun god Bel. In later tales, Beli was the brother-in-law of the Virgin Mary. The original Beli was connected closely with the druids and their rituals. Beltane is his festival, May 1.
Bellieus A Knight of the Round Table who fought Lancelot over an incident with his wife.
Benedigeidfram “blessed,” applied to the god Bran.
Bercelak T name of the Green Knight in Arthurian stories.
Berth The name of the son of Cadwy in ancient legends.
Berwyn Barwyn, Berwin A mountain name, in northeast Wales. The place names means "snow-capped."
Beuno
Beven Bevin, Bevyn Son of Evan” or “youthful”
Blaen
Blair Blaire, Blayre “place”
Blaise Bleys Merlin’s mysterious teacher; he lived in Northunberland.
Blathaon The of the son of Mwrheth in ancient tales.
Blaidd Bleidd BLAYTH “wolf”
Bleddig Bledig BLED-dig “wolf”
Bleddyn Blethyn, Bleiddyn, Bleiddian BLETH-in From blaidd “little wolf” + dim. suffix -yn. The slang name “Wolf” was applied to both warriors and outlaws in Wales.
Bledri BLED-ree blaidd “wolf” + rhi “king” = “leader of the warriors or outlaws”.
Blegwyrd
Bleiddian BLATH-yahn blaidd “wolf” + -ian, verbal ending, “one who goes wolfing,”  i.e. looting, raiding.
Blethint
Bleuddydd
Bogart BO-gart “bog” or “marshland;” a name in both Ireland and Wales.
Bors The son of the king of Benoic and cousin to Lancelot. He was one of the best Knights of the Round Table along with Galahad and Perceval.
Bowe Bowen, Bowie “son of Owen”
Brac BRAK “free”
Brad Bradwr BRAD “treason,” “traitor”
Bradwen The name of the son of Moren in ancient legends.
Braen “corrupt”
Bran BRON “raven” or “crow”. Famous bearer-Bran Bendigeidfran Bran the Blessed in the Second Branch of the Mabinogi. Bran the Blessed was brother of goddess Branwen.
Branoc
Branwaladr
Brastias Originally a knight in Cornwall, he was one of Arthur’s captains, and later Warden of the North.
Brathach The name of the son of Gwawrddur in the old tales.
Brian Briant, Brien, Bryan, Bryant, Bryon The name of the son of Turenn in the ancient tales.
Brice Bryce BRYCE “alert”
Brinley BRIN-lee
Brioc BREE-ahk
Brochfael Brochmael, Brochwel BROCK-vile
Broderic Broderick BROAD-er-rick “reddish-brown;” also“son of the famous ruler;” the name ap-Roderick appears often, signifying “son of Roderick.”
Bronwyn BRON-win “white breast”
Brude
Brychan Brugyn BREE-khan “speckled”
Bryn Brin, Brynn, Brynna BRIN “hill”. Popular for boys.
Brynach BREE-nahk “hill” +  ?
Brynllyn Brynlyn “hill” + “lake, pool”
Brynmor Brinmawr BRIN-more “hill” + “great”
Brys Bryce “son of Rhys”
Buban
Bwlch The name of the son of Cleddyv Kyvwlch in the old tales.
Byrne “raven”
Cabal
Cadan “battle”
Cadarn “strong”
Caddoc Caddock “battle-sharp” or “eager for war”
Cadel Cadell cad “battle,” “spirit of the battle” or “battler”
Cadellin The name of the son of Gweir in the old legends.
Cadeyrn KAHD-ayrn cad “battle” + teyrn “prince”
Cadfael KAHD-file or KAHD-vil cad “battle” + ban “summit;” or cad + mael “prince”
Cadfan KAHD-vahn cad “battle” + ban “summit,” or cad + mael “prince;” 6th C. saint associated with a healing well.
Cadfannan KAHD-vahn-non cad “battle” + ban “summit,”+ ?
Cadfrawd “battle brother”
Cadlew KAHD-loo cad “battle” + ?
Cadman Cadmon KAHD-mahn “warrior”
Cadoc Cadawg, Cadog KAHD-ok “battle sharp”. Originally a nickname for Cadfael. Cadoc was the name of one of the most important Welsh saints. St. Cadoc was carried on a cloud to Northern Italy, where he became a bishop and was martyred.
Cadogan Cadugan KHAD-o-gahn cad “battle” + gwogawn “glory, honour”
Cadomedd KHAD-o-meth “battle shirker”
Cadwalader Cadwaladr, Cadwaladyr kad-WAHL-ah-der cad “battle” + gwaladr “leader”. 7th C.saint and ruler of northern kingdom of Gwynedd.
Cadwallen Cadwallon kad-WAHL-on “battle defense”
Cadwgan Cadwgawn ka-DOO-gan cad “battle” + gwogawn “glory, honour”. The name of the son of Iddon.
Cadwr name of the son of Gwryon in the old tales.
Cadyryeith “well-spoken”
Caer Llion “one from Caerleon Castle of the Lion”
Caerau
Caerwyn Carwyn KIRE-win or KAYR-win caer “fort” + gwyn “white, shining, holy”
Cafal
Cai Cei, Kay, Kei KYE Possibly derived from Latin name Caius; similar with Irish cai coi “path, way.” May be derived from a word meaning “fiery;” others believe it means “keeper of the keys”. Other sources say it means “rejoicer”.Cai was described as King Arthur’s closest companion.In the 10th C. poem, Pa gur yw y porthawr, Cai killed nine witches and rid the island of Anglesey of a fierce monster call the Palug Cat.
Cain Cane, Cayne, Cein, Kane “spear”
Cairn Carne The Welsh word for a pile of stones used as a landmark.
Calcas The name of the son of Caw in the old legends.
Calder “brook” or “stream”
Caledvwich The name of Excalibur in Welsh legends.
Candalo Candalou cyn, “high”? + delw “image/statue”
Cant Kent “white”
Caradoc Caradawg, Caradec, Caradeg, Caradog, Caraddog, Craddock, Cradoc, Cradog kar-AH-doc car “love,” “beloved.” The name of Eudav’s father in the old tales.
Carannog Carantoc, Carantec, Karanteg “victorious”
Cary Carey “from the castle”
Carnedyr The name of the son of Govynyon in the ancient tales.
Caron
Cas The name of the son of Seidi in the old legends.
Casnar The name of a nobleman in the old tales.
Casswallawn According to legends, the name of the son of Beli.
Cattegirn “battle lord;” a son of Vortigrn in the old tales.
Cattwg Catwg
Caval
Caw A name from the old legends.
Cecil “blind”
Cedifor Kedivor
Cedig
Cedrych Cedrick, Cedrik, Cedric KED-rikh “bountiful”
Ceidio
Ceinlys
Ceith Keith, Keath “wood-dweller” or “dwells in the woods”
Ceithin Keithon The name of the uncle of Lugh in the old tales
Cellydon kell-OO-dun “wood-dweller”
Celyn Kelyn KEL-in “holly;” Celyn ap Caw son of Caw was a member of Arthur’s court in the medieval tale Kulhwch and Olwen.
Celynen keh-LUN-en “holly”
Cemlyn KEM-lin “bent lake”
Cenn Kenn KEN “clear water”
Centwin KEN-twin
Cenwyn KEN-wyn “blessed head”
Cenydd Kyned KEN-ith
Cenyon Kenyon “from Ennion’s mound”
Cerdic “beloved”
Ceredig
Ceri CARRY Name of two rivers, one in Dyfed and one in Glamorgan. May come from Welsh caru “to love.” Male or female name.
Cerwyn KER-win Possibly means “black” or “white”
Cewydd
Cian Kian KEE-an Possibly from Welsh ci cwn “hound, wolf,” or from Old Irish cian “ancient, enduring.” Cian is known as on of the five Cynfeirdd, founding poets of Welsh tradition, although none of his poems have survived.
Ciaran
Cibno
Cilydd Kilydd The name of Celyddon’s son in the old tales.
Cini
Cirdan KEER-dahn
Clais
Cledwyn KLED-win caled “hard/rough” + wyn “white”
Clether
Clodock
Clud “lame”
Clust
Clydno Clywd KLOOD-no clod, “fame” + cno, “devourer”
Clydog KLOO-dog
Clywd Clyde KLOO-id “heard from afar;” The name of the son of Clustveinydd in the legends.
Cnychwr The name of the son of Nes in the old tales.
Coed KOYD “dwells in the woods”
Colan
Colgrevance A Knight of the Round Table who was slain when the Knights tried to capture Lancelot while he was in Guinevere’s chamber.
Coll
Collen KOLH-en “hazel tree”
Collvrewi
Colwyn Colwin, Colwynn COL-win The name of a Welsh river.
Conan CO-nan possibly meaning “to grumble”
Congar
Conwy CON-wee Personal name from the river in northern Wales, from the Irish Gaelic name Connmhaighe, “hound of the plain”
Cornan COR-nan
Corryn COR-rin “spider”
Coudeu
Cradelmass A king of north Wales whom Arthur defeated at the start of his reign.
Crandall Crandal “wooded vale”
Cranog CRA-nawg “a crane”
Crist “Christian”
Cubert KOO-bert The name of the son of Daere in the old tales.
Cuby
Cuhelyn KOO-hel-lin
Culhwch KOOL-oo The name of the son of Kilydd in the old tales.
Culvanawd The name of the son of Gwryon in the old tales.
Cunvelyn
Curig
Custenhin The name of Erbin’s father in the old legends.
Cwenarth
Cwna
Cwrig
Cybi
Cydifor Kedivor
Cyfeiliog
Cyfnerth
Cyfulch
Cygnar
Cymran
Cymry KUM-ree The “Brethren;” the Welsh people’s name for themselves.
Cynaethwy
Cynan Kynan, Kynon, Kynon KUHN-ahn kuno “great, high”. Popular in Medieval Wales. The name of Clydno’s son in the ancient tales.
Cynbal “warrior-chief”
Cyndcyrn
Cynddelw kuhn-THEY-loo cyn “high”? + delw “image/statue/effigy”
Cyndeyrn KUHN-dairn “head chief ”
Cyndrwyn Kyndrwyn The name of Ermid’s son in the old tales.
Cyndylan kuhn-THEE-lan “chief influence”
Cynedyr Kynedyr KUHN-e-deer The name of the son of Hetwn in the old legends.
Cynfael KUHN-file cyn, “chief,” and meal meaning “prince” or “armor.”
Cynfan KUHN-fan
Cynfarch KUHN-varkh “chief horse”
Cynfre
Cynfyn
Cyngar
Cyngen
Cynhaern “chief iron”
Cynhafal
Cynlas Kynlas The name of Kynan’s son in the old tales.
Cynog
Cynrain
Cynri
Cynstenian “steadfast;” Welsh form of Constantine.
Cynvelyn
Cynwal Kynwal “chief wall;” The name of one of Caw’s sons in the old tales.
Cynwric Cynwrig
Cynwyl The name of a very early Welsh saint.
Cynyr kuh-NEER
Cystennin “constant”
Dafi DAH-vee diminutive of Dafydd
Dafydd Daio, Deio, DAH-vith “dearly beloved;” Welsh form of David. St.David is patron saint of Wales.
Dagonet The name of King Arthur’s jester, who was made a knight and excelled in bravery during many tournaments.
Dai DYE diminutive of Dafydd
Daind
Dallben
Dalldav The son of Cunyn Cov in the old legends.
Dallwyr
Daned The son of Oth in the old tales.
Daryn Daran, Daren, Darin, Daron, Darren, Darrin, Darron, Daryn, Darryn, Deryn, Deron DAHR-uhn “burnt land; hill”
Daronwy
Davis “son of David,” variant of Dafydd.
Daz DAZ “burnt land; hill”
Decuman
Defi
Deheuwynt Dehewint
Dei “to shine”
Deian DYE-an diminutive of Dafydd
Deiniol DYNE-yol Welsh form of Daniel. St. Deiniol was active in late 6th C .in N.Wales.
Deio Daio DAY-oh “to shine,” diminutive of Dafydd.
Delwyn Delwin DEL-win “Godly friend”
Derfael Derfel DER-vyle “Oak prince, stubborn prince”
Derwyn Derwen, Derwin DER-win “from the oak tree”
Deverell Deverril “from the riverbank”.
Dewi Dewey DEH-oo’ee “beloved,” form of David.
Dewitt “blonde, white”
Digat
Digon The son of Alar in the old tales.
Dillus The name of Eurei’s son in the old tales.
Dilwyn Dillwyn “shady place,” or “true” + “white”
Dinadan A Knight of the Round Table who had a sense of humor, and loved to play jokes on the other Knights. He was later killed by Mordred.
Dinan
Dincat
Dingad
Dirmyg The name of one of Caw’s sons.
Docco
Doged
Dogfael Dogmael DOG-vyle
Dogwel
Dover
Drem “sight”
Dremidydd "seer" The father of Drem in the old tales.
Druce Druson, Drywsone “son of Dryw”
Drudwas son of Dru
Drwst Drust Tristan. Obscure name from Welsh tales.
Drych The name of the son of Kibddar in the old legends.
Drystan “full of sorrow”.Welsh version of Tristan.
Dryw Drew, Dru DREW “wise”
Drywon
Drywsone “son of Dryw”
Duach The name of Gwawrddur’s son in the old legends.
Dubric
Dunawd
Duvan
Dwyai
Dyfan
Dyfnallt
Dyfnwal
Dyfrig
Dylan Dillan, Dillon Dyl DIL-un or DUHL-an “ocean, sea, the deep;” in Mabinogi, Dylan eil Ton Sea Like a Wave was a son of Arianrhod.
Dynawd
Dyvynarth The name of the son of Gwrgwst in the ancient stories.
Dyvyr The name of Alun’s son in the ancient stories.
Dywel The name of the son of Erbin in the ancient legends.
Earwine Erwyn “white river”
Ector Ector of the Forest Sauvage was Arthur’s foster father in the Arthurian sagas.
Edar
Edenevet
Edenewen Edeneweyn, Edenowen
Edern The name of the son of Nudd in the old legends.
Edmyg “honor”
Ednowain
Ednyfed
Edryd “descent; restoration”
Edwart “protector of the good”
Edyin
Edynfed
Efwr
Ehangwen A name from the old legends.
Eian
Eiddoel The name of Ner’s son in the old tales.
Eiddyl A name from the old legends.
Eideff
Eidiol
Eidyn
Eifion "son of Cunedda"
Eiladar The name of Penn Llarcan’s son in the old stories.
Eilir
Einion Einian, Einiawn, Einon, Einws, Ennion eye-NEE-on “anvil”
Einws Einwys
Eirian eye-REE-on “shining; fair”
Eiryn The name of Peibyn’s son in the old stories.
Eirwyn IRE-win “golden” + gwyn “holy, white, pure”
Eivyonydd A name from the old tales.
Elad
Elan “drive; push”
Elddig “heat”
Elfed
Elffin
Elfodd
Elgan " bright circle"
Elidyr
Elian Eilian, Elyan, Helyan “second, a moment in time.
Elidir el-IH-dir
Elisedd el-IH-seth
Eliud
Eliver
Ellis Elis, Elisa, Elise EL-is
Elphin The name of the son of Gwyddno in the old legends; in Taliesin stories, he rescued the infant Gwion Bach, later named Taliesin, from a salmon weir.
Eltut
Elusdan
Elwyn Elwin, Ellwyn EL-win “friend of elves”
Elystan el-ISS-tan Welsh form of Athelstan.
Emhyr Emyr EM-heer “ruler”
Emlyn EM-lin From Latin aemilianus “flattering, charming;” some sources say “waterfall”.
Emrys EM-ris Welsh form of English Ambrosius, from Greek Ambrosios “immortal.”
Emryus An epithet of the magician and poet Myrddin Merlin
Ener
Ennissyen A giant Welshman related to Bran the Blessed who started the war with the Irish, which led to the death of Branwen and her son.
Enodoc
Eogen
Eoin Evan YAY-ahn “young warrior”
Erbin The name of Custinhin’s son in the old tales.
Ergyryad The name of one of Caw’s sons in the old tales.
Ermel
Ermid The name of the son of Erbin in the old legends.
Ernan
Ernin
Erthgi
Eryi “from Snowdon”
Eudav Eudaf The son of Caradawg in the ancient stories.
Euddogwy
Eurig
Euros
Eurosswydd A name in old Welsh tales.
Eurwyn
Eus The name of Erim’s son in the old legends.
Evan Eoin, Evann, Evans EV-in Welsh form of John.
Evnissyen ev-NESS-yen “lover of strife;” Half-brother of the god Bran in the ancient legends.
Evrawg “from York”
Evrei A name out of the old stories.
Eynon
Fagan
Fane Faine “glad”
Fercos The name of Poch’s son in the old legends.
Ffernfael
Fferyll
Ffinan
Fflergant The name of one of Brittany’s legendary kings.
Fflewdwr The name of the son of Naw in the old stories.
Ffodor The son of Ervyll in the old tales.
Ffowc “of all the people”
Ffranc FRANK Welsh form of Frank.
Ffransis FRAN-sis “from France;” Welsh form of Francis.
Ffwc
Fychan VEE-khan “small”
Fyrsil “bears the staff;” Welsh form of Virgil.
Gahariet
Galahad The illegitimate son of Lancelot and Elaine; a pure knight who surpassed his father’s deeds of valor and died when he saw the Holy Grail.
Galehodin Lancelot’s brother; he became the Duke of Saintongue.
Gamon A name from the old stories.
Gandwy A name in ancient legends.
Garanhon The name of Glythvyr’s son in the ancient legends.
Garel
Gareth    Garreth, Garath, Garth, Garyth GAH-reth from Welsh gwaraidd “civilized, gentle;” other sources have the meaning “powerful with the spear” from an Anglo-Saxon word.Tennyson used the name for a knight of King Arthur’s in his Idylls of the King.
Garin
Garnock “dwells by the alder-tree river”
Garselid A name from the old legends.
Garwyli The name of Gwyddawg Gwyr’s son in the old legends.
Garym A name from the old stories.
Gawain Gavan, Gaven, Gavin, Gavyn, Gavynn, Gawaine, Gawyan, Gawayne, Gwayne, Gwain, Gwalchmei GAH-wine “white hawk” or “white hawk of battle;” a Knight of the Round Table, and a son of Lot and Morgause of Orkney. He was also known as Gwalchmai, “Hawk of May”.
Gdarn
Gelhi
Geraint GER-ine’t From Celtic Gerontios similar to Greek gerontius “old”. Geraint mab Erbin was hero of a medieval Welsh romance. A knight of the Round Table, renowned for his prowess in tournaments, the way he won his wife Enid. Also said to have been the king of Cornwall. A Welsh elegy to Geraint mab Erbin dates c. 900, and also mentioned as a warrior in the Gododdin.
Gerallt GER-alht Welsh form of Gerald.
Gerlad GER-lahd
Gerwin Gerwyn GER-win “fair-love”
Gethin Geth, Gethen, Gethun GETH-in from Welsh cethin “dark, dusky, swarthy”
Gilbert GIL-bert The name of the son of Cadgyffro in the old legends.
Gildas GIL-das “servant of God;” The 6th C. monk and saint, Gildas, was the author of De Excidio Britanniae The Destruction of Britain, in which he blamed his fellow Welsh for allowing Anglo-Saxons to overrun Britain. St.Gildas venerated in Brittany as St.Gweltas and credited there for performing numerous miracles.
Gilvaethwy Gilfaethwy gil-VITH-wee The name of one of the goddess Donn’s sons. He lusted after his Uncle Math’s virgin foot-holder and caused a war between Gwynedd and Dyfed in an attempt to get her. His punishment was to undergo shapeshifts into various animals, and to bear young.
Girioel
Gladus
Glanmor GLAN-more “clean; bright” and “great”
Glasnant GLAS-nant “blue stream”
Gleis The name of Merin’s son in the old tales.
Glendower Glyndwer, Glyndwr glen “valley” + dwr “water;” “one of Glyndwer”
Glew GLOO The name of Ysgawd’s son in the old stories.
Glewlwyd Arthur’s gatekeeper in the Culhwch and Olwen myth.
Glinyeu The name of Taran’s son in the old legends.
Glyn Glynn GLIN “one who lives in the glen or valley;” from Welsh glyn “valley”.
Glythvyr A name in the ancient tales.
Glywys
Gobrwy name of Echel Pierced Thighs in the old stories.
Gofannon One of the goddess Donn’s sons. He was a god of blacksmiths and the equal of the Irish Goibniu.
Gogan
Gogyvwlch A name in the ancient tales.
Golistan
Gollwyn
Goreu The name of one of the sons of Custinhin or Custennin and a woman who was Igraine’s sister.
Gorlois gohr-LOY The Duke of Cornwall and Igerna’s husband; the woman whom Uther Pendragon coveted. Father of Morgan, Morgause, and Elaine.
Gormant gohr-MONT The name of Rica’s son in the old tales.
Goronw gohr-ON-oo
Goronwy gohr-ON-wee from Welsh gwr “man”.
Gorsedd GHOR-seth “from the mound”
Gorthyn GHOR-thun
Gortigern GHOR-ti-gern
Govan The name of one of Caw’s sons in the old legends.
Govannon Go-VAHN-nun The son of the goddess Donn in the old legends; he was a smith-god.
Govynyon A name from the old legends.
Gowerr “pure”
Gowther A hero in Arthurian tales who tames his savage disposition by penances.
Graid
Granwen The name of one of Llyr’s sons in the old legends.
Greid The name of Eri’s son in the old tales.
Greidyawl An obscure name from the old tales.
Griffin Griffen, Griffid, Griffith, Griffon, Gruffudd, Gruffydd, Gruffyn, Gruffen, Gryffyd, Gryffid, Gryphin, Gryphon Guto, Gutun, Gutyn, Griff GRIFF-in From the mythological beast; cryf “strong” + udd “lord”. Several medieval rulers bore the variant Gruffudd. Possibly also “red-haired.”
Griffry Griffri
Griflet The name of one of the first Knights of the Round Table; King Arthur accepted him even though he was very young.
Grigor GRIH-gor “watchful; vigilant,” Welsh form of Gregorious.
Grippiud
Gromer A powerful shapeshifter and magician who captured Arthur in the story of Gawain and Dame Ragnell.
Gron
Gronw Gronow, Gronou, Grono, Groneu, Gronoe GROHN-oo Pebr lover of Blodeuwedd, and rival of Llew.
Gruddyeu The name of Muryel’s son in the old legends.
Gryffry Gryffri
Gryg
Guinedoc
Guinglain The only legitimate son of Gawain and Lady Ragnall; a Knight of the Round Table who was killed by Lancelot.
Guinier
Gundlei
Gurgeneu Gurgenu
Gusg The name of Achen’s son in the old tales.
Guto Gutun, Gutyn “strong lord”
Gwaednerth GWYDE-nerth “blood” + “strength”
Gwair
Gwalhaved The name of one of Gwyar’s sons in the old legends.
Gwallawg The name of Llenawg’s son in the old tales.
Gwallter “strong fighter;” Welsh version of Walter.
Gwanon
Gwarddur
Gwaren
Gwarthegydd The name of one of Caw’s sons in the old legends.
Gwawl The name of Clud’s son; at one time betrothed to the goddess Rhiannon before she married Pwyll.
Gwefrfawr
Gwegon
Gwenabwy
Gwenfaen
Gwengad
Gwenlyn GWEN-lin “white; blessed” + “hill”
Gwennarth GWEN-narth
Gwenwynwyn GWEN-win-win
Gwern “old;”  the name of Branwen’s son by Irish King Matholwch; the infant was thrown into a fire and killed by Branwen’s half-brother Ennissyen.
Gwevyl name of Gwastad’s son in legends.
Gwgan
Gwilym GWIL-im Welsh version of William.
Gwitart The name of Aedd’s son in the ancient stories.
Gwogan
Gwraid
Gwrddywall The name of Evrei’s son.
Gwres The name of Rheged’s son in the old tales.
Gwrfelling
Gwrgant
Gwrgenau
Gwriad GOOR-yahd
Gwrien
Gwrthefyr
Gwrthmwl
Gwyar
Gwyddawg The name of Menestyr’s son in the old tales.
Gwyddnaw
Gwyddno GWITH-noh gwyd “knowledge” + gno “fame”.
Gwydol GWID-ol “zest”
Gwydyon Gwydion, Gwiddon GWID-yon gwyd “knowledge” + -on, divine ending. Gwydion ap Don was a powerful magician in the Mabinogi. In Welsh, Caer Gwydion Gwydion’s Castle is the Milky Way.
Gwydre name of one of Arthur’s sons in the old legends.
Gwydyr Gwydir gweyeth-AR “victor”
Gwyglet The name of a hero in the epic The Goddoddin; he fought and died in the battle of Catreath Catterick.
Gwygn
Gwyleged
Gwylfa GWIL-fah “watching place”
Gwylon GWIL-lon “Festival; watch; modest; sight
Gwyn Gwin, Gwion, Gwyon GWIN gwyn “white, shining, holy;” also “fair”. Gwyn ap Nudd was the Lord of the Underworld and leader of the Wild Hunt. He kidnapped Creiddylad, causing a battle with Gwythyr ap Greidawl, her betrothed. Later, he was known as King of the Fairies and the Plant Annwn, subterranean fairies. Medieval tales say the entrance to his kingdom is in Galstonbury Tor.
Gwynallt “white hill”
Gwynant “white stream”
Gwynedd GWIN-eth “ whate, fair;” from the placename.
Gwyneira gwin-AYR-ah gwyn “shining, holy” + eira “snow”
Gwynfardd gwin-FARTH
Gwynfor GWIN-vor “holy; white” + “lord”
Gwynfryn “white hill”
Gwynllw Gwynllyw gwin-LOO
Gwynnog
Gwyr “from Gower”
Gwythyr Gwythur GWEE-thir “victor;”  the son of Greidyawl in the old legends; also the name of the lord of the Upperworld.
Hafgan Havgan HAHV-gahn haf “summer” + can “song;” male or female name. Name of an Otherworld deity who annually fights Arawn for rulership of the Underworld.
Halwyn Halwn “salt”
Haydn “fire”
Hedd “peace”
Heddwyn HETH-win hedd “peace” + gwyn “shining, holy, white”
Hefaidd The name of Rhiannon’s father in the ancient legends; he ruled part of the Underworld.
Hefin HEV-in “summery”
Heilin Heilyn, Heilyn, Heylin, Heylyn HAY-lin helioe “to prepare/wait on;” steward/wine-pourer; also “generous.”
Helig HEL-ig
Henwyn HEN-win
Heulfryn HALE-vrin heul “sun” + bryn “hill”.
Heulyn HIIL-een “ray of sunshine”
Hirael Hiral HEER-ile “long brow”
Hova
Huniat
Huw Hewe, Hew, Hu, Huycyn HYOO Welsh version of Hugh, from Old German hugi “intelligence, spirit”
Hwfa
Hydd “deer”
Hyfaidd
Hywel Heuil, Hoel, Howel, Howell HUH-wel “remarkable” or “attentive;” “alert one.”  From hywel “eminent”. Hywel Dda Hywell the Good was a 10th C. king of Wales. Made the druids’ oral legal tradition into a written code of law.
Hywn Hewyn, Hywyn HYOON “eminent”
Iago YAH-goh “God’s gift” or “supplanter;” Welsh version of James.
Ial
Ianto YAN-toh “God is gracious”
Iarward Iarword Iolo, Iolyn ior “lord” + berth “handsome”
Iau Welsh version of Zeus.
Iddawg The name of Nynyo’s son in the old legends.
Idnerth Idenerth
Idris Idriss, Idriys ID-ris iud, “lord” + ris “ardent, impulsive, eager”
Idwal ID-wal “lord” + gwal “rampart”
Idwallon “lord” + “rule”
Iestyn Jesstin, Jestin, Jeston, Yestin YES-tin “righteous, just;” Welsh version of Justin.
Ieuaf
Ieuan YAY-an “God is gracious;” Welsh version of John.
Ifan IH-von “God is gracious;” Welsh version of John.
Ifanwy if-AN-wee “fine, rare”
Ifor Iver, Ivor Welsh version of a Teutonic name meaning “archer”.
Illog
Illtud Illtyd IHL-tood “multitude” + “people”
Inek Welsh version of Irvin.
Ioan YOH-uhn
Iona Celtic name for the Isle of Anglesey off the northern Wales coast.
Iowerth Ioreword, Iorwerth, Iolo, Iolyn YOH-worth From Norse ior “lord” + Welsh gwerth “value, worth”. Used as the Welsh version of Edward since the Middle Ages.
Irvin Irv, Inek, Irving “white river”
Irwyn “green/fresh” + “white”
Isell
Isfoel IS-foyl “under a hill”
Islwyn ISS-loo-win “below” + “grove;” the name of a mountain in Gwent.
Issui
Ithel Ithael “generous lord”
Iudhael Iudhail
Iustig The name of one of Caw’s sons in the old legends.
Iwan YEW-ahn “God is gracious”
Jareth Jarey, Jarith “gentle”
Jesstin Jestin, Jeston, Justin “righteous, just;” Welsh version of Justin.
Jones Joenns “son of John”
Joseff Ioseff JO-seff “he will enlarge”
Josue Welsh version of Joshua.
Junabui
Kedivor
Keithon
Kendall Kendal, Kyndal
Kendric Kendrick, Kendrik, Kendryk,
Kened Keneth
Kenneric
Kenryc Kenrick, Kenrik
Kenuric
Kenyr
Kerwyn Kerwin “white fort”
Kevenard
Kevyn Cavan, Kavan, Kaven, Kevan, Keven, Kevinn, Kevion, Kevon Kevis
Kireg KEE-rehg “benevolence”
Kyned
Lancelot Son of King Ban of Benoic in France—Galahad’s father, Knight of the Round Table and an unbeatable warrior. His affair with Queen Guinevere caused the death of many knights and the destruction of King Arthur’s kingdom.
Lavaine In old Arthurian legend, he was a young Knight and son of Sir Bernard of Astolat. He was knighted by Lancelot and became one of the greatest Knights of the Round Table.
Leget
Leodegrance Name in the old tales given as the King of Cameliard, who was Guinevere’s father.
Leolin Leoline LEE-oh-lin “leader;” “lion”
Lewelyn Lewelin Llelo, Lelo, Lyn, Lin “bright/shining” + ?
Lewys Lewis LEH-OO-iss “fame and war”
Lifris
Lionel A Knight of the Round Table, cousin to Lancelot, and brother to Bors.
Llacheu Borre, Boare, Lohot. The name of one of Arthur’s illegitimate sons by Lysanor in the ancient legends.
Llara “meek”
Llaw
Llawr
Lleision
Lleu “bright/shining”  a Welsh sun god Llew Llaw Gyffes, son of Arianrhod and an unnamed father and raised by his uncle Gwydion.
Llevelys The name of Beli’s son.
Llew HLEE’oo “lion”
Llewelyn Llelo, Lelo, Lyn, Lin “bright/shining” + ?
Lleyn
Llifion
Llion
Lloyd Lloid, Loy, Loyde HLO-id “grey” or “holy”
Llwyd LHOO-eed llwyd “grey, holy” “one with gray hair”
Lludd Llud, Llundein “from London,” or from the god Llud Llaw Ereint similary to Irish Nuada and Greek Neptune.
Llunwerth
Llwch LUKE Llwch Llawwyanawc was a warrior who went with Arthur to retrieve the great cauldron when it was stolen and taken to Annwn.
Llwybyr The name of one of Caw’s sons in the old tales.
Llwydeu name of Nwython’s son in the old stories.
Llwyr The name of the Llwyryon’s son in the old stories.
Llygad
Llyn Lyn, Lin “from the lake”.
Llyr Lear HLeer “of the sea;” a Welsh sea and water god, similar to Irish Lir. Listed as father of Bran and Branwen.
Llywarch HLEE-warkh lugu “bright” + marcos “horse”
Llywelyn Llewellyn, Llywel Llelo, Lelo, Lin and Llew hlee-WEL-en llwy “leader, steerer” + eilun “image”.
Lot Lotha “envelope, protect;” the king of Orkney and Lothian and husband of Morgause.
Lovel one of Gawain’s illegitimate sons who was killed by Lancelot.
Lowarch lugu “bright” + marcos “horse”
Lug Luc “the bringer of light;” Welsh version of Luke.
Lythan
Mab Mahb mab “son;”
Mabon Mabane MAH-bon “the son,” name of a mysterious child in the Arthurian sagas; he was stolen from his mother at three days old and imprisoned at Gloucester. His story is told in Culhwch and Olwen.
Mabsant The name of one of Caw’s sons in the old tales.
Macsen Maxen MAK-sen “the greates;” from Latin name Maximus. Maxen Wledig Lord Maxen was a 4th C. Spanish-born general who led the remnants of the Roman army out of Britain to claim the emperorship and was briefly successful.
Madoc Madawg, Madok, Maddex, Maddock, Maddocks, Maddox, Madock, Madog, Maddog, Madok MAH-dog “good, generous”
Madocson Maddockson MAH-dock-son “son of Madoc”
Mador MAH-dor
Mady
Madyn Madin
Mael MYLE “prince;” the name of Roycol’s son in the old tales.
Maelgad MYLE-had “prince” + “battle”
Maelgwn Maelgwyn MYLE-goon “prince of the hounds,” mael “divine prince” + ci cwn “wolf, hound”. Maelgwn Gwynedd was a 6th C. Welsh king.
Maelogan my-LOH-gahn “divine prince,” mael “prince” + -on, a divine ending.
Maelon MILE-on “prince”
Maelrys MILE-ris
Maelwys MILE-wees The name of Baeddan’s son in the old tales.
Maglorix “Chief ruler”
Mahel
Mailcon
Maioc
Maldwyn MAHL-dwin “bold friend”
Mallolwch The name of the legendary king of Ireland who married Branwen.
Malvern MAL-vern “bare hill”
Manawydan Name of sea god Llyr’s son; equal to Irish god Manannan mac Lir. He was a skilled shapeshifter and kept the Isle of Man and the Isle of Arran under his protection; and broke the enchantment on Dyfed.
Manhogan
March Mark, Marc MAHRX march “horse”. Name of King Mark in the Welsh version of the Tristan saga, in which he is known as March ap Meirchion Horse, Son of Horses. The horse was a symbol of kingship in Celtic culture.
Marchlew
Marials MAR-lice “big ditch; stream”
Marrock A knight who was secretly a werewolf.
Martyn From Mars, the god of war.
Marvin mer, “marrow” + myn “eminent”
Math MAHTH From Celtic math “bear.” According to the Mabinogi, Math ap Mathonwy MAHTH mahth-ON-oo-ee was king of N.Wales and a powerful magician; and helped create a flower-wife for his great-grandson, Llew.
Matho
Mathonwy math-ON-wee
Maugan
Mawrth Welsh version of Mars, a Roman god of war.
Medrawd Medrod MAY-drowd “own course, own host”
Medwyn MAY-dwin
Medyr may-DEER The name of Medyredydd’s son in the old tales.
Méen
Mefin mer, “marrow” + myn “eminent”
Meical Meic MY-kal Welsh form of Michael.
Meilin
Meilyr Meilur, Meiler, Meyler "man of iron"
Meirchion Merchiaun “horses”
Melfyn MEL-vin
Melkin MEL-kin A pre-Merlin prophet and poet mentioned in the Annals of Glastonbury Abbey.
Mellon MEL-lon
Mellyr MEL-lyr “chief ruler”
Menw The name of Teirwaedd’s son in the old tales.
Menwaed
Mercher Mercher Welsh form of Mercury, Roman messenger of the gods.
Meredyth Meredith, Merideth, Mirideth, Meredudd, Maredudd, Mereduth me-RED-ith mawr “great, big” + udd “lord;” other sources give the meaning “guardian from the sea”. It was also the name of many medieval Welsh princes.
Meriaun
Merin Mehr-in
Merlin Merlyn MER-lin “by the sea.” The great sorcerer of the Arthurian sagas; his father was from the Otherworld, his mother was earthly. Legend says he learned all his magic from Nimue also known as Morgan, Viviane, Lady of the Lake, and Queen of the Fairies; old legend says he is guardian of the Thirteen Treasures of Britain that he locked in a glass tower on Bardsey Island. Welsh tradition says Myrddin still sleeps in a hidden crystal cave. The Welsh name Myrddin means “hawk”.
Merrion Meirion mery-EE-on Welsh version of Mars, a Roman god of war.
Mervyn Merfyn, Mervin, Mervyn, Mervynn, Merwin, Merwinn, Merwyn MER-vin mer, “marrow” + myn “eminent”
Meurig MY-rig “dark skinned,” Welsh version of Morris or Maurice.
Mewin
Mihangel Meic MAYK mi-HAHNG-el Older Welsh form of Michael.
Mil The name of Dugum’s son in the old tales.
Moelwyn MOYL-win “white hill”
Moaidog
Mordred Modred The name of King Arthur’s son by Morgause, his half-sister. He was raised with his half-brothers, the other children of Morgause and Lot. Arthur killed him at the Battle of Camlan.
Morien MOHR-yen “sea-born”
Moesen “from the water;” Welsh version of Moses.
Morcar “dwells near the sea”
Mordwywr “sailor”
Morfael MOHR-file “great prince”
Morfran Morvran “great crow;” the name of Tegid’s son in the old tales.
Morgan Morcan, Morcant, Morggan, Morgant, Morgun MOHR-gahn from Welsh mor “sea” or mawr “great, big” + can “bright” or cant “circle” or geni “born”. Could mean “big circle,” “bright circle,” “bright sea,” or “sea-born,” or “dwells near the sea”. Male or female name. Most famous Morgan is probably Morgan la Fay, King Arthur’s half-sister and famed sorceress.
Morgen “sea-born”
Morgannwg “from Glamorgan”
Morgenau
Morial
Moriddig Moridic
Moried
Morien
Morlais
Morthwyl “hammer”
Morydic
Mostyn “moss” + “enclosure;” “fortress in a field.”
Myfyr MIF-eer “muse;” “study”
Mynyddog
Myrddin Merddin MUHR-din or MUHR-thin moridunon “sea fortress”. Welsh source of the name is from the sorcerer Merlin.
Nai
Nantlais NANT-lys “stream ditch,” “stream voice”
Nath
Naw The name of Seithved’s son in the old legends.
Neb The name of one of Caw’s sons in the old legends.
Nectan
Neddig
Nefydd
Neilyn
Neirin NEY-rin
Nentres One of eleven kings who revolted against Arthur; he later married Elaine and became the King’s ally.
Nerth The name of Cadarn’s son in the old tales.
Nerthach The son of Gwawrddur in legend.
Nerthaid
Neued The name of Tringad’s father.
Newlin “dwells near the new pool”
Niclas “victory of the people”
Nidan
Nissyen NESS-yen “lover of peace;” brother of Evnissyen and his total opposite in morals and temperament. He was also a half-brother to the god Bran.
Nodens Llaw, Ereint variant of the sea god, Llud
Nudd NEETH
Nwython
Nye
Nynnyaw The name of one of Beli’s sons in the old tales.
Odgar The name of one of Aedd’s sons in the old stories.
Ofydd Welsh version of Ovid, a Roman poet.
Ol The name of Olwydd’s son in the old tales.
Olwydd “tracker”
Onllwyn ON-clwin “ash grove”
Osmail
Oswallt “strength from God;” Welsh version of Oswald.
Owein Owain, Owen OH-wine “well- or noble-born;” from Latin name Eugenius Eugene. Some sources list it as “young warrior.”
Pabo
Padarn “fatherly”
Padrig PAHD-rig “patrician, noble;” Welsh form of Padraig Patrick, patron saint of Ireland.
Paluc
Parry PAHR-ee From Welsh ap Harri “son of Harry or Henry.”
Pasgen PAHS-gen Pasg “Easter.”
Pawl POWL “little;” Welsh form of Paul.
Pebwyr
Pecham
Pedr Pedran, Petran PED-er “rock;” Welsh form of Peter.
Pedrog
Peissawg The name of a king of Brittany in the old legends.
Peithan
Pelles Known as the Wounded King of the Grail Castle after he was wounded through both thighs; his daughter Elaine bore Galahad, Lancelot’s son.
Pellinore The brother of Pelles, King of the Isles, and one of the greatest Knights of the Round Table.
Pellyn “from the lake’s headland”
Pembroke “headland”
Pendaran
Penn “from the peak”
Pennant “head stream”
Pennar PEN-ahr from Welsh pen “head” + ardd “hill, height”
Penvro “from Pembroke”
Penwyn “white head”
Perceval Percival, Parzival, Percy The name of a Knight of the Round Table.
Peredur peh-RAY-deer Derivation uncertain, perhaps from Welsh peri “spears” + dur “hard”. Peredur mab Efrawc was the hero of a Welsh Arthurian grail romance.
Petran “stone”
Phylip
Piran
Piro
Powel POE-el “son of Hywel”
Prydderch
Pryderi pra-DAYR-ee “caring for/anxiety;”  In the Mabinogi, Pryderi was stolen by a monstrous claw on the night of his birth and deposited in Teyrnon Twrf Fliant’s stable.He renamed the child Gwri Gwallt Euryn Gwri Golden-Hair and raised him, until it was clear he was the missing son of Pwyll and Rhiannon.When returned to his mother, her first words were “I would be relieved of my care pryder if this were true!” So he was renamed Pryderi.
Prydwen “handsome”
Prys Pryce PREES from ap Rhys “son of Rhys.”
Prysorwen
Pur
Puw “son of Hugh;” Welsh version of Pugh.
Pwyll Powell POO-uhl “son of Howell,” in ancient legends, he was the lord of Dyfed when he met Arawn, lord of Annwn, and took his place for a year in the Otherworld.
Pyr
Pyrs “stone” or “rock;” Welsh form of Pierce.
Ren Ryn “ruler”
Renfrew Rhinfrew “dwells near the still river” or “raven wood”
Rerid
Rhain HRAYNE rhain “spear, lance”.
Rhainallt HRAY-nalht “ruler with counsel”
Rheged The name of Gwres’ father.
Rhett “enthusiastic”
Rhidian
Rhigyfarch
Rhionganedd The name of a prince of Ireland in the old legends.
Rhiryd Rhirid “ruler + repel”
Rhisiart RHISH-art “strong power;” Welsh form of Richard.
Rhiwallon “ruler”
Rhobert Robert Robyn “brilliant, renowned;” Welsh form of Robert.
Rhodri Rhod RHOD-ree hod “circle” + rhi “ruler,” Rhodri Fawr Rhodri the Great was an important 9th C. king He was a renowned warrior, as well as the ancestor of many of the later dynasties of Wales.
Rhun HREEN “grand;” the name of one of Beli’s sons in the old tales.
Rhuvawn Rhufon HRU-vahn The name of Deorthach’s son in the old legends.
Rhyawdd The name of Morgant’s son in the old tales.
Rhychdir “from the plow land”
Rhyd REED “from the ford”
Rhydderch Roderick, Rodric HRIH-therkh rhi “king” + derchafu “ascending;” also “reddish-brown.” Rhydderch Hael Rhydderch the Generous was a king of the Old North in the 6th C. He fought alongside Urien Rheged and Morcant against the incursions of Anglians into the area that is now southern Scotland.
"Rhydian

Rhydwyn Rhydwen HRID-win “white; blessed” + “ford; crossing”
Rhygyvarch Rhygifarch
Rhyryd Rhirid, Ririd
Rhys Reece, Rice, Reis, Riess, Rhett, Rees, Reese, Res, Reys, Ryys RHEES rhys “ardor, passion, rash;”  “ardour, ardent one”
Rhywallan
Robat Robet Robyn ROE-bat “bright fame;” Welsh form of Robert.
Robyn ROB-een Nickname for Robert.
Rolant “fame land”
Romney Rumenea ROM-ney “dwells near the curving river”
Rudderch Rydderch
Ryrid Ryryd
Sadynfyw
Safwyl Sawel, Sawyl “he is called God”
Sannan “scarred”
Sayer “carpenter”
Seimon SAY-mon “listening;” Welsh form of Simon.
Seiriol SAIR-yole “shining; bright one”
Seirian “sparkling”
Seith Saith SEYR-ee-an “seven”
Seithennin
Seissylt Seisyl, Seisylit SES-ilt “sixth”
Sel SEL The name of Selgi’s son in the old tales.
Selwyn SEL-win sel “ardor” + gwyn “shining, holy”
Selyf Selyv SEL-if “peace;” Welsh version of Solomon. The name of Kynan’s son in the old legends.
Senyllt
Seren SER-en “star;” Sirona, from the same Celtic root, was an ancient Gaulish goddess of hot springs. Male or female name.
Seriol
Siam SHAM Welsh form of James.
Siarl SHARL “free man;” Welsh form of Charles.
Siawn The name of Iaen’s son in the old tales.
Sieffre SHEF-ree “God’s peace”
Siencyn SHEN-kin “God is gracious;” Welsh version of Jenkin.
Sinnoch The name of one of Seithved’s sons in the old tales.
Sion Sioni SHON Welsh form of John.
Sionyn SHON-een
Sior Siors, Siorus, Siorys SHOR “farmer;” Welsh form of George.
Steffan Steffen, Steffon “crowned with laurels;” Welsh form of Stephen.
Sugyn The name of Sugynedydd’s son in the old tales.
Sulbiu
Sulgan
Suliau
Sulien Sulyen SIL-yen sul “sun” + geni “born”. Originally the name of a Celtic sun god. 11th C. Welsh bishop of St. David’s named Sulien was reputed to have been the most learned man in all Wales.
Suluc
Sulwyn “White sun, sun-born”
Syvwlch The name of Cleddyv Kyvwich’s son in the old tales.
Sywno
Tad Tadd “father”
Taffy “beloved”
Talan “brow”
Talfryn “high hill”
Taliesin tahl-YES-in tal “brow” + iesin “radiant, shining”. A 6th C. poet who composed poems in praise of the heroes Owein, Urien Rheged and others.
Talfan “tall beacon”
Talore
Talorg
Tangusius
Tangwyn “white peace”
Tarrant Taran, Tarran, Taryn, Taren, Terrant “heaven, raft;” also “thunder,” a variant of Taranis, a thunder and storm god, similar to Jupiter.
Tathal
Tathan
Tecan
Tegerin
Tegid “silent;” Tegid Foel husband of the goddess Cerridwen, their home was under Lake Tegid.
Tegvan Tegfan “fair summit, fair place;” the name of Cerridwen’s son in the old tales.
Tegwared Tegwaret
Tegwyn Tecwyn TEG-win “beautiful; fair”
Teilo TAY-loh A 6th C. saint who founded a church at Llandeilo Fawr in Dyfed. After his death, a dispute arose between the churches of Llandeilo, Llandaf, and Penally on where Teilo’s remains were to be kept. His body miraculously triplicated so that no one would be left out.
Teithi The name of one of Gwynnan’s sons in the old tales.
Telor “sing”
Teregud The name of one of Iaen’s sons in the old stories.
Terfel “oak prince, stubborn prince”
Teryrnon TAYR-non tigernonos “divine prince;” In the Mabinogi, Teyrnon Twrf Fliant was Pryderi’s foster father.
Teulyddog
Tewdwr TEH-OO-door teutorix “people ruler “
Timotheus “honors God;” Welsh version of Timothy.
Tisilio
Tomos TOHM-ohs “twin;” Welsh version of Thomas.
Tor The natural son of King Pellinore, who was raised by a cowherd. The truth of his ancestry came out when he asked to be a Knight of the Round Table.
Trahaearn Trahaern, Trahern, Traherne “strong” + haern “iron” “strong as iron”
Tremayne Tremain, Tremen “lives in the house by the rock”
Tremerig
Trent Trynt “dwells near the rapid stream”
Trevelyan “from Elian’s home”
Trevor Trebor, Trefor, Trevar, Trever TREV-ohr tref “home, town” + mor “great”
Trillo
Tringad The name of Neued’s son in the old tales.
Tristan Tristen, Tristin, Triston, Trystan “noisy one, clamor;” Confused with Tristram; Tristan is mentioned as a Knight of the Round Table in the Arthurian sagas.
Tristram “sorrowful;” The tragic tale of Tristram Tristan in Arthurian legend and Isolde; he was the son of King Meliodas and Queen Elizabeth of Lyonnesse and went to his uncle King Mark in Cornwall after his country sank under the ocean. There, he fell in love with Isolde, his uncle’s wife, causing a great scandal. He served King Arthur for a time, but went to Brittany where he was mortally wounded.
Tudfwlch
Tudor Tudri, Tudur, Tudyr TID-or from teutorigos “king of the tribe”.
Tudwal “country ruler, tribe ruler”
Tugdual
Tungyr
Twedwr tee-OO-door from teutorigos “king of the tribe”.
Twm TOOM
Twrgadarn “tower of strength”
Twynnell
Tydfwlch
Tyfid
Tysilio
Tywyn “ray, sea-shore”
Tywysog “prince”
Uchdryd name of Erim’s son in the ancient tales.
Upjohn “son of John”
Urien Uren, Urian orbo “privileged” + gen “birth”? Traditional name of the king of the land of Gorre who was associated with the Round Table. He married Morgan le Fay; their son was Owain.
Urfai
Uther
Uwain
Vaddon “from Bath”
Vaughan Vaughn, Von, Vychan fychan “small”
Wadu The name of one of Seithved’s sons in the old legends.
Waljan “chosen”
Weyland A god of smiths, said to have made Excalibur. His name is still associated with several sites in Wales and Britain.
Wid
Wigan
Winnoc
Wmffre Wmmffre OOM-free “friend of the Huns;” Welsh form of Humphrey.
Wooloo
Wren “ruler”
Wyndod
Wynn Win, Winifred, Winnie, Wion, Wyn, Wynn, Wynne, Wyon “friend”
Yale “fertile upland”
Yerward Iolo, Iolyn ior “lord” + berth “handsome”
Yestin Jestin “one who is just;” Welsh form of Justin.
Yorath Yeorathe Iolo, Iolyn ior “lord” + berth “handsome”
Ysberin name of Fflergant’s son in the old tales.
Ysfael
Ysgawyn name of Panon’s son in the old tales.
Ystrwyth

From: https://great-pendragon-campai...m/wikis/cymric-names

Name Meaning Popularity
Ade
Aderyn “bird”
Adwen
Aelwen “fair browed’ **
Aeron Unisex Welsh form of Celtic Agrona, the name a goddess of war and death who was portrayed as a masculine figure in  mythology,  “carnage, slaughter.” 
Aerona Feminine Welsh form of  unisex Aeron,  “carnage, slaughter.”
Aeronwen Name popularly translated aeron “berries” and gwen “white,” yielding “white berries,” but the first element is more likely to have come from the name of a Celtic goddess of war, Aeron,  “carnage, slaughter,” hence “white slaughter.”
Aeronwy Compound name composed of Aeron “carnage, slaughter” and wy “river,” hence “carnage river” or “slaughter river.”
Afanen “Raspberry”
Afon Modern unisex  name  “river”
Alaw Name of a river in Anglesley and it also  water lily in **
Alis Welsh form of French Alais,  “noble sort.” Compare with another Welsh form of Alis.
Alison Diminutive Welsh form of  Alis,  “noble sort.” Compare with another Welsh form of Alison.
Alwen A river in Clwyd ***
Alwena Variant of Alwen *
Anarawd UnisexWelsh form of  Angharad,  “undisgraced, free of shame.”
Aneira Based on  word for snow *
Angharad (Ang-kar-ad) Arthurian legend name of a love of Peredur in the Mabinogion, derived from angharz,  “undisgraced, free of shame.” She is known as Angharad Golden Hand, and in some versions of the story the lovers first meet at King Arthur’s court. ***
Angharat Variant spelling of  Angharad,  “undisgraced, free of shame.”
Angharawd Variant spelling of  Angharad,  “undisgraced, free of shame.” This name appears in the family of Le Strange in 1344.
Anna Sister of King Arthur ****
Annest Daughter of Gruffdd ap Cynan, King of Gwynedd *
Anwen “Very fair” or “blessed” **
Anwyn Variant spelling of  Anwen,  “very fair” *
Aranrhod Derived from proto-Celtic *arganto-rota,  “huge/round/humped wheel.” In the Mabinogi, this is the name of the daughter of Beli Mawr, and mother of the twins Dylan and Lleu Llaw Gyffes.
Arianrhod ModernWelsh form of  Aranrhod (“huge/round/humped wheel”), but having a different origin and , composed of the  elements arian “silver” and rhod “wheel,” hence “silver wheel.”
Arianwen From the  words for silver and white/pure **
Arnive
Arwen Female version of Arwyn *
Astrigis
Beca ShortWelsh form of Rebecca. “Merched Beca’ from the Rebecca riots ****
Begw ShorternedWelsh form of Megan ***
Bene
Bethan Welsh form of Greek Elisabet,  “God is my oath.” Daughter of Brychan 5th century king *****
Beti Welsh form of Betty **
Betrys Welsh form of Latin Viatrix,  “voyager (through life).”
Betsan Short Welsh form of Elisabeth **
Blancheflor
Blodeuedd Myth name, derived from blawd,  “flowers.” In the Mabinogi, this is the name of a woman made from flowers who was the lover of Goronwy. After she killed her husband and was transformed into an owl, her name was changed to Blodeuwedd.
Blodeuwedd Myth name, derived from proto-Celtic *blāto-weid-ā  “wild feminine (spirit).” In the Mabinogi, this is the name of a woman made from flowers who was the lover of Goronwy. This is the name of Blodeuedd after she killed her husband and was transformed into an owl.
Blodeuyn Derived from blawd,  “flower.”
Blodwedd Variant spelling of  Blodeuwedd,  “wild feminine (spirit).”
Blodwen “white flower” **
Blodwyn “white flower” **
Braith Unisex name derived from brith,  “diversely-colored,” especially black and white or red and white. “freckled,” or "speckled" *
Brangwen “Fair raven’ *
Brangwen Variant spelling of  Branwen,  “fair raven.”
Brangwy Variant spelling of  Brangwen,  “fair raven.”
Branwen Arthurian legend name of the daughter of Llŷr in the Mabinogion, composed of the elements bran “raven” and gwen “fair, white,” hence “fair raven.” *
Branwenn Variant spelling of  Branwen,  “fair raven.”
Brenda Derived from Irish saint, Brendan *
Briallen Derived from Welsh briallu meaning "primrose"
Briant
Brin Variant spelling of  unisex Bryn,  “hill.”
Bron ShortWelsh form of  Bronwen,  “fair-breasted.”
Brongwyn Name composed of the elements bron “breast” and (g)wen “fair, white, holy,” hence “fair-breasted.”
Bronwen Variant spelling of  Brongwyn,  “fair-breasted.” ***
Bronwyn Variant spelling of  Brongwyn,  “fair-breasted.” *
Bryn Unisex name  “hill.”
Brynn Variant spelling of  unisex Bryn,  “hill.”
Brynne FeminineWelsh form of  unisex Bryn,  “hill.”
Cadi Pet Welsh form of  Catrin,  “pure.”
Calire
Caron Name, derived from caru,  “to love.” Compare with anotherWelsh form of Caron.
Carys Name derived from caru,  “love.”
Catrin Welsh form of Old French Caterine,  “pure.”
Ceinwen Name composed of the elements cain “lovely” and (g)wen “fair, holy, white,” hence “lovely and fair.”
Ceri Unisex name  “to love.”
Ceridwen Name composed of the elements cerdd “poetry” and (g)wen “fair, holy, white,” hence “fair poetess.” In mythology, this is the name of a female magician, the mother of Taliesin, Morfran (Avagddu), and the fair maiden Creirwy.
Cerridwyn Variant spelling of  Ceridwen,  “fair poetess.”
Cerys Variant spelling of  carys,  “love.”
Collwen
Crearwy Variant spelling of  Creirwy, possibly  “purity.”
Creiddylad Name, possibly  “heart’s lust.” In mythology, this is the name of the daughter of Lludd Llaw Eraint.
Creirwy Legend name of the beautiful daughter of Ceridwen, possibly  “purity.”
Crystin Welsh form of French Christine,  “believer” or “follower of Christ.”
Cunneware
Danbrann Arthurian legend name of the sister of Percival, sometimes known as the “Grail heroine.” She is a major character in many of the Holy Grail stories.
Delwyn Unisex name composed of the elements del “pretty” and (g)wyn “fair, holy, white,” hence “pretty and fair.”
Delyth Derived from the element del,  “pretty.”
Deryn Name, probably from aderyn,  “bird.”
Dilwen FeminineWelsh form of  Dilwyn,  “truly blessed.”
Dilys Name derived from dilys,  “genuine, steadfast, true.”
Dôn Name of unknown origin. In mythology, this is the name of a mother goddess, the consort of Beli Mawr.
Duddug
Dwyn Short Welsh form of  Dwynwyn, from  dwyn “to steal” and (g)wyn “fair, holy, white.”
Dwynwyn Name composed of the elements dwyn “to steal” and (g)wyn “fair, holy, white.” This is the name of a  patron saint of lovers whose orcular eels could predict a maiden’s love-luck. She is supposed to have refused love herself and lived as a hermit on the tiny island of Llanddwyn.
Dylis Variant spelling of  Dilys,  “genuine, steadfast, true.”
Ebrill The  word for April *
Efa Welsh form of Greek Eva,  “life.” Compare with anotherWelsh form of Efa.
Eigr Variant spelling of  Eigyr,  “maiden, virgin.”
Eigyr Arthurian legend name of the wife of Uther Pendragon and mother of King Arthur, derived from the  word eigyr,  “maiden, virgin.”
Eilian Unisex name probably derived from eilio,  “second, a moment in time.” This was the name of a saint who is said to have performed miraculous cures and after whom the place Ffynnon Eilian (St. Elian’s well) was named.
Eiluned Variant on Eilun *
Eiluned Old  name derived from eilun,  “idol, image.” In Arthurian legend, this is the name of Laudine’s servant.
Eilwen Name composed of the elements ael “brow” and (g)wen “fair, holy, white,” hence “fair-browed.” **
Eira Name derived from eira,  “snow.” Compare with anotherWelsh form of Eira. **
Eirian Name derived from eirian,  “bright, beautiful.”
Eirlys Name  “snowflake.”
Eirwen Name composed of the elements eira “snow” and (g)wen “fair, holy, white,” hence “snow white.”
Elain Name  “fawn.” **
Elan Daughter of Celtic godess Do^n **
Elen Welsh form of Greek Helénē, possibly  “torch.” **
Eleri Legend name of the daughter of Brychan, possibly derived from the name of a river, from alar,  “more than full; overflowing.”
Elidis
Elin Welsh form of Helen or Elen ***
Eluned Variant spelling of Old  Eiluned,  “idol, image.” Welsh form of Lynette **
Emlyn Unisex Welsh form of German Emmeline,  “work.”
Enfys Unisex name  “rainbow.” *
Enid Arthurian legend name of Geraint’s wife,  “soul.”
Enide
Enit Variant spelling of  Enid,  “soul.”
Erin The old  word for Ireland *
Esclarmonde
Esyllt Welsh form of French Iseult, probably from German Ishild,  “ice battle.” In Arthurian legend, this is the name of the tragic princess who was the mistress of Tristram.
Eurwen Name composed of the elements aur “gold” and (g)wen “fair, holy, white.”
Feimurgan
Felelolie
Felinete
Feunete
Ffion Welsh form of Irish Gaelic Fíona,  “foxglove” *****
Fflur Found in the place name Ystrad Fflur ***
Ffraid Name for Irish Bríghid,  “exalted one.”
Florie
Gaenor Welsh form of English Gaynor,  “white and smooth.” **
Generys Medieval  name, probably  “white lady.”
Gladys ModernWelsh form of Old  Gwladus,  “ruler.”
Glaudusa OlderWelsh form of  Gladys,  “ruler.”
Glaw Unisex name  “rain.”
Glenda Modern  name composed of the words glân “clean, pure, holy” and da “good,” hence “pure good.” ***
Glenice Variant spelling of  Glenys,  “holy, pure.”
Glenys Modern  name derived from glân,  “holy, pure.” ***
Glesig
Glesni From  word glas  blue ***
Gloris
Glynis Variant spelling of  Glenys,  “holy, pure.” **
Goleuddydd Arthurian legend name of the mother of Culhwch, the hero of the story Culhwch and Olwen,  “splendid day” or “splendid sun.”
Guendolen Variant spelling of  Gwendolen,  “white ring.”
Gwawr The  word for “dawn’ *
Gwen Name derived from gwen,  “fair, holy, white.” Also used as a shortWelsh form of longer names containing gwen. **
Gwenda Name composed of the elements gwen “fair, holy, white” and da “good,” hence “fair and good.”
Gwendolen Name composed of the elements gwen “fair, holy, white” and dolen “bow, ring,” hence “white bow” or “white ring.” In mythology, this is the name of King Locrine’s wife. **
Gwendoline Variant spelling of  Gwendolen,  “white bow” or “white ring.” *
Gwendolyn Variant spelling of  Gwendolen,  “white bow” or “white ring.” *
Gweneth Variant spelling of  Gwyneth,  “luck, happiness.” *
Gwenevak Variant spelling of  Gwenhwyvach, possibly  “Gwengwy the less.” In Arthurian legend, this is the name of the sister of Guinevere (Gwenhwyvar). She may have been wife to Mordred.
Gwenfrewi Name composed of the elements gwen “fair, holy, white” and frewi “reconciliation,” hence “holy reconciliation.”
Gwengwyvar Welsh form of French Guinevere, the Arthurian legend name of Gwenhwyvach’s sister, possibly composed of the elements gwen “fair, holy, white” and hwyfar “smooth, soft,” hence “white and smooth.” There are other possibilities. It may come from Proto-Celtic *vindo-siabraid,  “white phantom.” Or, the names of the sisters may mean “Gwenhwy the Great” (Gwenhwy-vawr) and “Gwenhwy the Less” (Gwenhwy-vach). Gwenhwyvach and Gwenhwyvar did not get along well together; Triad 84 of the Culhwch states that the Battle of Camlann was caused by the enmity between the two sisters. Triad 53 lists the slap that Gwenhwyvach gave Gwenhwyvar as one of the “Three Harmful Blows of the Island of Britain.” And Triad 54 describes how Mordred raided Arthur’s court and threw Gwenhwyvar to the ground and beat her.
Gwenhwyvach Possibly  “Gwengwy the less.” In Arthurian legend, this is the name of the sister of Guinevere (Gwenhwyvar). She may have been wife to Mordred.
Gwenhwyvar Original Welsh form of French Guinevere, possibly composed of the elements gwen “fair, holy, white” and hwyfar “smooth, soft,” hence “white and smooth.”
Gwenith name derived from gwenith,  “wheat.” *
Gwenllian From Gwen ("white, holy") and Lliant ("flood, flow") ***
Gwenllian Old  name composed of the elements gwen “fair, holy, white” and lliant “flood, flow.”
Gwenn Variant spelling of  Gwen,  “fair, holy, white.”
Gwenneth Variant spelling of  Gwyneth,  “luck, happiness.”
Gwenyth Variant spelling of  Gwenith,  “wheat.”
Gwladus FeminineWelsh form of Old  Gwledig,  “ruler.”
Gwyn Unisex name  “fair, holy, white.” In mythology this is a masculine name. In  mythology, it is the name of the ruler of the underworld (Annwn) where he escorted the souls of the dead. In Arthurian legend, Gwyn ap Nudd (“fair/white son of Nudd”) was the abductor of the maiden Creiddylad after her elopement with Gwythr ap Greidawl, a long-time rival of his. He helped Culhwch hunt the boar Twrch Trwyth, and in later legends he was king of the “fair folk” (tylwyth teg). ****
Gwynedd Modern  unisex name derived from the name of a region of North Wales named after the medieval Kingdom of Gwynedd,  “happiness.” **
Gwyneira Name composed of the elements gwyn “fair, holy, white” and eira “snow,” hence “white as snow.”
Gwyneth Name derived from gwynaeth,  “luck, happiness.” **
Gwynn Variant spelling of  unisex Gwyn,  “fair, holy, white.” *
Habren Old Welsh form of Severn, the name of a river in England where a Celtic goddess dwelt, possibly  “thorny cactus.” See Sabrina, the Latin form.
Haf “summer” **
Hafren ModernWelsh form of  Habren, aWelsh form of Severn, the name of a river in England where a Celtic goddess dwelt, possibly  “thorny cactus.” See Sabrina, the Latin form. *
Hefina FeminineWelsh form of  Hefin,  “summer.”
Heledd Name of a 7th-century semi-legendary princess, possibly derived from Cornish *heyl,  “estuary.”
Heliap
Heulog Unisex name  “sunny.”
Heulwen Name  “sunshine.”
Hyledd Variant spelling of  Heledd, possibly  “estuary.”
Iblis
Idain
Imane
Indeg
Iola FeminineWelsh form of Iolo *
Iona From Ionawr  word for January *
Jeschute
Laudine
Laufamour
Leri DimiuntiveWelsh form of Meleri,Eleri and Teleri *
Liaze
Lili Welsh version of Lily **
Lilo
Lin Variant spelling of  Linn,  “lake” or “waterfall.” Compare with anotherWelsh form of Lin.
Linn Name  “lake” or “waterfall.” Compare with other forms of Linn.
Lleueu
Lleulu Welsh form of Roman Latin Lucia,  “light.”
Llewella FeminineWelsh form of  Llewelyn,  “oath of Belenus.”
Llian DiminutiveWelsh form of Gwenllian *
Llinos Linnet in **
Llinos “greenfinch (bird).”
Lona Diminutive Welsh form of Moelona *
Loorette
Lore
Lowri Welsh form of Laura ****
Lowri Welsh form of Latin Laura,  “laurel.”
Luned Old  name derived from eilun,  “idol, image.”
Lyn Variant spelling of  Lynn,  “lake.” **
Lynn Name derived from llyn,  “lake.” **
Lynne Variant spelling of  Lynn,  “lake.” **
Mabli The  name for Mable **
Madlen Girl’s name for Magdalene *
Mai The month of May ***
Mair Welsh form of Greek Maria,  “obstinacy, rebelliousness” or “their rebellion.” ***
Mairwen name composed of the name Mair and the word (g)wen “blessed, fair, white,” hence “fair as Mair.” *
Mali Welsh form of Molly derivative of Mary **
Mallt Welsh form of German Maud,  “mighty in battle.”
Malvis
Mared Welsh form of Greek Margarites,  “pearl.”
Marged Welsh form of Greek Margarites,  “pearl.” **
Mari Welsh form of Mary ***
Mari Welsh form of Greek Maria,  “obstinacy, rebelliousness” or “their rebellion.” Compare with anotherWelsh form of Mari.
Mati From Marged *
Maugalie
Medi September **
Megan PetWelsh form of  Mared,  “pearl.” *****
Meinir Name composed of the elements main “slender” and hir “tall,” hence “tall and slender.” ***
Meinwen Name composed of the elements main “slender” and (g)wen “blessed, fair, white,” hence “slender and fair.”
Melangell
Meleri St David’s grandmother **
Melior
Menna Made famous by John Hughes a poet *
Mererid FeminineWelsh form of  Meredydd, probably  “sea day” or “sea sun.”
Modron Arthurian legend name of the daughter of Avallach, mother of Mabon, and probably the prototype of Morgan le Fay,  “divine mother.”
Morchades
Morgan Derived from ancient Celtic Morcant, probably  “sea circle.” In use by the English as a unisex name.
Morgana ElaboratedWelsh form of  Morgan, probably  “sea circle.”
Morwen ShortWelsh form of Cornish/ Morwenna,  “maiden.”
Morwenna Cornish and  name, derived from the  word morwyn,  “maiden.”
Myf ShortWelsh form of  Myfanwy,  “my woman.”
Myfanwy Name composed of the elements my “my” and banw “woman,” hence “my woman.” ***
Myfi Short for the  girls name Myfanwy **
Nerys Modern  name, probably derived from Old  Generys,  “white lady.” ***
Nest PetWelsh form of Greek Hagne (English Agnes),  “chaste; holy.” *
Nesta PetWelsh form of Greek Hagne (English Agnes),  “chaste; holy.” **
Nia Welsh form of Irish Gaelic Niamh,  “beauty, brightness.” Compare with anotherWelsh form of Nia. *****
Nimue Possibly related to Greek Mnêmê,  “memory.” In Arthurian legend, this is the name of the sorceress, known as the Lady of the Lake, who stole the infant Lancelot.
Non Mother of St David **
Obie
Obilot
Olwen From King Arthur mythical stories **
Olwen Arthurian legend name of the heroine of Culhwch and Olwen, composed of the elements ol “footprint, track,” and (g)wen “fair, holy, white,” hence “footprint/track of the holy one.” Olwen was the daughter of the fierce giant Ysbaddaden who was fated to die if she ever married. She was a magical girl who caused flowers to spring up wherever she went. When Culhwch (a cousin of King Arthur) came to seek her hand, Ysbaddaden required that he complete a series of nearly impossibly tasks before he would grant permission for them to marry.
Olwenna Variant of  girl’s name Olwen *
Olwin Variant spelling of  Olwen,  “footprint/track of the holy one.”
Olwyn Variant spelling of  Olwen,  “footprint/track of the holy one.”
Oruale
Owena FeminineWelsh form of English and  Owen,  “born of yew.”
Paderau Unisex name  “beads; rosary.”
Reannon Variant spelling of  Rhiannon,  “great queen.”
Repanse
Rhamantus Name  “romantic.”
Rhiainwen From Rhiain and wen (fair/blessed) *
Rhian Derived from rhiain,  “maiden.” *****
Rhiannon Name probably derived from the Old Celtic title Rigantona,  “great queen.” In mythology, this is the name of a horse goddess equated with Celtic Epona. She was the daughter of Hefeydd and mother of Pryderi. ***
Rhianon Variant spelling of  Rhiannon,  “great queen.”
Rhianu VariantWelsh form of  Rhian,  “maiden.”
Rhianwen “comely maiden”
Rhonwen Name composed of the elements rhon “lance, spear” and (g)wen “blessed, fair, holy, white,” hence “holy lance.”
Rhosyn “rose”
Riannon Variant spelling of  Rhiannon,  “great queen.”
Sangive
Sara From the girl’s name Sarah ****
Seren “star”
Siân Welsh form of English Jane,  “God is gracious.”
Siana Pet Welsh form of  Siân,  “God is gracious.”
Siani Pet Welsh form of  Siân,  “God is gracious.” **
Siôned FeminineWelsh form of  Siôn,  “God is gracious.” This is the Welsh form of English Janet. **
Siwan Welsh form of English Joan,  “God is gracious.” ** Shee-oohanne
Tagan From the  word “teg”  fair ***
Talaith Welsh form of Greek Talitha,  “damsel, maiden.”
Tanree
Tanwen white (gwen) fire (t^an) in **
Tarren “from the knoll”
Tegwen Name composed of the elements teg “fair” and gwen “blessed, holy, white,” hence “fair and holy.”
Teleri Variant on Eleri **
Terrwyn “brave fair one”
Tirion “gentle and happy” *
Tiwlip “tulip”
Tryamour
Tydfil
Violette
Ysbail Welsh form of Spanish Isabel,  “God is my oath.”