Although some Celtic names, mostly those of saints, remained part of the common stock, it is only in recent decades that the revival of interest in the culture and traditions of the Celtic peoples has led to Welsh, Irish, Scottish, and Cornish names being used more frequently in English speaking countries.
| Eavan | Eivan | Eoin |
| Evann | Evans | Even |
| Evens | Evin | Evo |
| Evyn |
Gareth 'Gahariet' or from Latin 'Gerontius' - 'old man'
| Garith | Garreth | Garyth |
Griffith 'Gruffydd' - from 'Grippiud' - 'prince' or Latin 'rufus' - 'red'
| Griff | Griffie | Griffy |
Llewellyn Celtic 'Lugobelinos' - 'bright one' or 'Llewel' - 'lion'
| Llewelin | Llewellen | Llewelleyn |
| Llewellin | Llywellyn | Lywelyn |
Lynn 'llyn' - 'lake'?
| Lin | Lyn | Lynell |
| Lynnard | Lynoll |
Marvin 'Mervyn' 'sea-hill'?
| Marve | Marven | Marvi |
| Marvin | Marvis | Marwin |
| Marwynn | Merv | Mervin |
| Mervyn | Mervynn | Merwin |
| Merwinn | Merwyn | Murvin |
| Murvyn | Myrvyn | Myrvynn |
| Myrwyn |
Meredith 'Maredudd' maybe from 'iudd' - 'lord
| Meredithe | Meredy | Meredyth |
| Meredythe | Meridath | Merideth |
| Meridie | Meridith | Merridie |
| Merridith | Merry |
Owen 'oen' - 'lamb' or 'eoghunn' - 'youth' or Latin 'Eugenius' - 'well-born'
| Oanh | Owain | Owens |
| Owin | Uaine |
| Adan | Aden | Adian |
| Adin | Aedan | Aydan |
| Ayden | Aydin | Edden |
Brendan 'brandr' - 'swordblade' or Germanic 'Brandolf' - 'swordwolf'
| Breandan | Breandon | Bren |
| Brenden | Brendene | Brendin |
| Brendine | Brendis | Brendon |
| Brenn | Brenndan | Brenton |
Brandon/Brennan (surname forms)
| Brandan | Branddon | Branden |
| Brandin | Brandone | Brandonn |
| Brandun | Brandyn | Branen |
| Brannan | Branndan | Brannden |
| Branndon | Brannon | Branon |
| Breannan | Brenan | Brennen |
| Brennin | Brennon | Brenon |
| Brynden | Bryndon | Bryndyn |
| Brynnen |
Brian 'brigh' - 'strength' or 'bruaich' - 'hill/steep'
| Brain | Brayan | Brayon |
| Bri | Briano | Brien |
| Briny | Brion | Bryam |
| Bryan | Bryen | Bryn |
| Brynn | Bryon |
Calum/Colm Gaelic form of 'Columba' - 'dove'
| Caelum | Cahlum | Callam |
| Callum | Calym | Kalem |
| Kallum |
Connor/Connory
| Conaire | Conary | Connar |
| Conner | Conor | Conroy |
| Conry | Kohn | Konnar |
| Konner | Konnor | Konor |
Corin 'Corrigan' - 'spearman'? Greek fem 'Corinna' or Lat Quirinus
| Corrin | Corryn | Korihn |
| Korin | Korrin |
Diarmuid 'Diarmait' - 'free from envy'
| Dermod | Dermot | Dermott |
| Diarmid |
Duane 'Dubhan' - 'little dark one'
| Dawayne | Dawyne | Deune |
| Dewayne | Doane | Du'aine |
| Duain | Duaine | Duana |
| Duwain | Duwan | Duwane |
| Duwayn | Duwayne | Dwain |
| Dwaine | Dwan | Dwane |
| Dwayne | Dwon | Dwyane |
| Dywane |
Fergus 'man-strength'
| Fearghas | Fearghus | Feargus |
| Ferg | Fergie |
Finian 'fionn' - 'fair'
| Fin | Finn | Finnian |
| Finnie | Finnis | Finny |
| Fionan | Fionn | Fynn |
| Phinean | Phinian |
Flann 'red'
| Flainn | Flan | Flanna |
| Flannan | Flannery |
Garrett form of Germanic 'Gerald'
| Gared | Garet | Garett |
| Garhett | Garodd | Garrad |
| Garrat | Garratt | Garred |
| Garret | Garrett | Garrett |
| Garrette | Garrit | Garrod |
| Gerret | Gerrett | Gerrit |
| Gerrit | Gerritt | Gerrot |
| Gerrott |
Kalen 'Kellen' - 'warrior'?
| Kaile | Kailean | Kailen |
| Kailer | Kalan | Kallan |
| Kelonn | Kheelan | Kellen |
Kellan/Killian
| Kael | Kaelan | Kaelen |
| Kaelin | Kaelyn | Kail |
| Kailan | Kailen | Kailin |
| Kalan | Kalen | Kalin |
| Kallan | Kallen | Kallin |
| Kallon | Kallun | Kalon |
| Kalun | Kalyn | Kaylan |
| Kaylen | Kaylin | Kaylon |
| Kaylyn | Keelan | Keelen |
| Keelian | Keilan | Keillan |
| Kellen | Kellin | Kellon |
| Kelynn | Keylan | Keylen |
| Kialen | Kilan | Kilean |
| Kilen | Kilian | Killie |
| Killy | Kilon | Kylan |
| Kylen | Kylin |
Kermit form of Dermot/Diarmuid?
| Kermey | Kermie | Kermy |
Kevin 'Caoimhin' - 'handsome'
| Cavan | Caven | Cavin |
| Cavinh | Kavan | Kavy |
| Kavyn | Keevin | Keevon |
| Kervin | Kervyn | Kev |
| Kevan | Keve | Keven |
| Keveon | Kevernee | Kevin |
| Kevinn | Kevins | Kevion |
| Kevis | Kevn | Kevon |
| Kevron | Kevvy | Kevyn |
| Kevynn | Kyvon | Tevin? |
Kian 'cian' - 'ancient'
| Cein | Cian | Cianan |
| Kian | Kiante | Kyan |
Kieran 'Ciaran' a diminutive of 'ciar' - 'dark/black'
| Cearo? | Keiran | Keirdan |
| Kern | Kernan | Keuren |
| Kieren | Kierian | Kiernan |
| Kieron | Kierre | Kierrez |
| Kyran | Kyren | Kyron |
Oran 'odhar' - 'pale green' or Hebrew 'oren' - 'pine tree'
| Odhran | Odran | Ora |
| Orane | Oren | Orin |
| Oris | Orono | Orran |
| Orren | Orrin |
Patrick from Latin 'patricius' - 'patrician' (Saint's name)
| Paddey | Paddie | Paddy |
| Paden | Padraic | Paidyn |
| Pat | Patric | Patrik |
| Patrique | Patrizius | Patryk |
| Pats | Patsy |
Ronan 'seal'
| Renan | Ronat |
Sean cognate of John
| Schon | Schonn | Seaghan |
| Seanan | Seann | Senae |
| Shaan | Shai'ahn | Shaine |
| Shane | Shaughan | Shaun |
| Shawen | Shawn | Shawne |
| Shawnee | Shawnn | Shawon |
| Shayn | Shayne | Shohn |
| Shon | Shouan | Shoun |
| Shuwn | Sion | Voshon? |
| Alaisdair | Alaistair | Alaister |
| Alasdair | Alastair | Alasteir |
| Alaster | Alastor | Aleister |
| Alester | Alista | Allaistar |
| Allastair | Allaster | Allastir |
| Allysdair | Alystair |
Donald 'world ruler'
| Don | Donal | Donaldo |
| Donall | Donalt | Donaugh |
| Donell | Doni | Donnell |
| Donnie | Donyell |
Dougal 'Dubhghall' - 'dark stranger'
| Dougall | Dugal | Dugald |
| Dugall | Dughall |
Eamonn cognate of Old English 'Edmund'
| Aimon | Ayman | Aymon |
| Eamon | Eemon |
Ewen cognate of John
| Ewan | Hewan | Iwan |
Ian cognate of John
| Aeon | Ayan | Eain |
| Ean | Eaon | Eian |
| Eion | Eyon | Iain |
Kenneth 'Cinaed' - 'born of fire' and 'Caioneach' -'handsome'
| Keneth | Kennet | Kennethen |
| Kennett | Kennieth | Kennith |
| Kennth | Kennyth |
Diminutives
| Ken | Keni | Kenn |
| Kenney | Kennie | Kenny |
| Kinnie |
Lachlan 'laochail' - 'warlike' or 'Lochlainn' - 'lakeland'
| Lachann | Lache | Lachie |
| Lachlann | Lachy | Lakelan |
| Lakeland | Leachlainn | Lochlain |
| Lochlann |
Malcolm 'servant of Columba'
| Malcolum | Malcom | Malcum |
| Malkolm |
Neil/Nigel 'Niall' 'cloud' or 'champion'
| Neal | Neall | Nealle |
| Nealon | Nealy | Neel |
| Neihl | Neile | Neill |
| Neille | Nele | Nels |
| Neylon | Nial | Niall |
| Nialle | Niegel | Niele |
| Niels | Nigal | Nigiel |
| Nigil | Nigle | Nijel |
| Nil | Niles | Nilo |
| Nils | Nilsson | Nilya |
| Nye | Nygel | Nyle |
| Aelan | Ailin | Alaen |
| Alainn | Alair | Alaire |
| Aland | Alani | Alayn |
| Alayne | Alen | Allain |
| Allan | Allen | Allenon |
| Alleyn | Allin | Alluan |
| Allyn | Alon | Lan |
Arthur 'artos' bear, 'art' stone or Latin gens 'Artorius'
| Art | Artair | Arte |
| Artek | Arth | Arther |
| Arthor | Artian | Artie |
| Artis | Artor | Artos |
| Artur | Arturo | Artus |
| Arty | Athuro | Atty |
| Aurthar | Aurther | Aurthur |
| Turi |
Brock badger??
| Broc | Brocke | Brockett |
| Brockie | Brockley | Brockton |
| Brocky | Brok | Broque |
Gavin/Gawain 'Gwalchmai' - 'hawk-battle'?
| Gaeven | Gaiven | Gavan |
| Gaven | Gavinn | Gavino |
| Gavyn | Gavynn | Gawaine |
| Gawan | Gawayn | Gawayne |
| Gawen | Gwaine | Gwayn |
| Gwayne |
Marlon form of Merlin?
| Mailon? | Marlen | Marlyn |
Merlin 'sea-hill/fortress'
| Merle | Merlen | Merlinn |
| Merlyn | Merlynn | Meryl |
Tristan Gaelic 'Drystan' from 'drest' - 'tumult/riot'
| Drustan | Thristan | Trestan |
| Treston | Trinton | Tris |
| Trisan | Trisstian | Trista |
| Tristain | Tristam | Tristano |
| Tristany | Tristean | Tristen |
| Tristian | Tristiane | Tristin |
| Tristine | Triston | Tristram |
| Tristyn | Trust | Trustan |
| Trusten | Trustin | Truston |
| Tryistan | Trystan | Trysten |
| Trystian | Trystin | Tryston |