Celt males
- Adair
- Aengus
- Ahearn
- Ahern
- Ailbe
- Ailill
- Airell
- Alan
- Alanson
- Allan
- Allen
- Allyn
- Anant
- Anghus
- Angus
- Anna
- Ansgar
- Anwell
- Anwyl
- Anyon
- Aod
- Aonghus
- Arawn
- Argyle
- Arlan
- Arlen
- Arlin
- Arlyn
- Art
- Arthur
- Artur
- Arturo
- Attie
- Atty
- Baird
- Bairrfhionn
- Barra
- Barry
- Basil
- Beacan
- Bearach
- Bearchan
- Becan
- Bedwyr
- Bendigeidfran
- Bevan
- Bevin
- Bevyn
- Blaine
- Blainey
- Blair
- Blane
- Blayne
- Blayney
- Boadhagh
- Boden
- Bodyn
- Bowden
- Bowdyn
- Bowen
- Bowyn
- Boyd
- Boyden
- Boynton
- Bram
- Bran
- Brandan
- Brann
- Brasil
- Breanainn
- Breandan
- Breasal
- Bredon
- Brendan
- Brennan
- Bret
- Brett
- Brian
- Briant
- Brice
- Bricriu
- Britomartus
- Broin
- Bryan
- Bryant
- Bryce
- Burgess
- Cachamwri
- Cadell
- Cadman
- Cahal
- Cairbre
- Calder
- Calum
- Camero
- Cameron
- Camey
- Caoimhghin
- Car
- Caradoc
- Carbry
- Cardew
- Carew
- Carey
- Carney
- Carr
- Carrol
- Carroll
- Cary
- Casey
- Cassivellaunus
- Caswallan
- Cathair
- Cathal
- Cathaoir
- Cathbad
- Cedric
- Celyddon
- Chad
- Clust
- Clustfeinad
- Cocidius
- Coinneach
- Con
- Conall
- Conall Cernach
- Conan
- Conant
- Conchobar
- Condan
- Condon
- Conlaoch
- Conn
- Connell
- Connla
- Conroy
- Conway
- Corann
- Cormac
- Cradawg
- Cuchulain
- Cuinn
- Culain
- Culann
- Culhwch
- Cullen
- Custennin
- Cynyr
- Dallas
- Daman
- Darcy
- Dearg
- Dermot
- Desmond
- Devin
- Devyn
- Dewain
- Dillion
- Dinsmore
- Doane
- Domhnall
- Don
- Donal
- Donald
- Donall
- Donat
- Donnally
- Donnchadh
- Donnelly
- Donogh
- Doran
- Dorran
- Dougal
- Doughal
- Doughlas
- Douglas
- Doy
- Doyle
- Drem
- Driscoll
- Druce
- Drudwyn
- Drummond
- Duane
- Dubv
- Duer
- Duff
- Duffy
- Dughall
- Duncan
- Dunham
- Dwayne
- Dyfed
- Ea
- Eburacon
- Edan
- Efnisien
- Egan
- Eghan
- Egomas
- Einion
- Elidor
- Emrys
- Eoghann
- Eoin
- Erim
- Evan
- Evnissyen
- Ewan
- Ewen
- Ewyn
- Farrel
- Farrell
- Fearghus
- Ferchar
- Ferdiad
- Ferghus
- Fergus
- Ferris
- Fiacra
- Fiacre
- Fiallan
- Fiamain
- Finbar
- Fingal
- Finian
- Finn
- Finnbar
- Finnobarr
- Floyd
- Forsa
- Fynbar
- Gall
- Galvin
- Galvyn
- Gawain
- Gelban
- Gildas
- Gilmore
- Gilroy
- Girard
- Glen
- Glenn
- Glifieu
- Glyn
- Gorsedd
- Gruddieu
- Guy
- Gwalchmai
- Gwawl
- Gwefl
- Gwern
- Gwernach
- Gwri
- Gwynham
- Hafgan
- Halwn
- Hefeydd
- Heilyn
- Henbeddestr
- Henwas
- Herne
- Hoel
- Huarwar
- Hueil
- Huon
- Iden
- Inness
- Innis
- Irven
- Irvin
- Irving
- Irvyn
- Kailen
- Kalan
- Kalen
- Kallan
- Kane
- Karney
- Kayne
- Keaghan
- Keane
- Kearney
- Keary
- Keegan
- Keene
- Kegan
- Keir
- Kellen
- Kelvin
- Kelvyn
- Kelwin
- Kelwyn
- Kendal
- Kendall
- Kendhal
- Kenneth
- Kent
- Kentigern
- Kermit
- Kermode
- Kerry
- Kerwin
- Kerwyn
- Kevan
- Kevin
- Kevyn
- Kheelan
- Kieran
- Kilian
- Killian
- Kirwin
- Kirwyn
- Kunagnos
- Kynthelig
- Lairgnen
- Lee
- Leigh
- Leith
- Lesley
- Leslie
- Lincoln
- Lir
- Llewelyn
- Lloyd
- Llyr
- Mabon
- Mac
- Maccus
- Mack
- Macklin
- Macklyn
- Maddock
- Maddox
- Malcolm
- Malvin
- Malvyn
- Mariner
- Marvin
- Marvyn
- Matholwch
- Medr
- Medredydd
- Melville
- Melvin
- Melvyn
- Menw
- Merlin
- Merlyn
- Morfran
- Morgan
- Morven
- Morvyn
- Moryn
- Murdoch
- Murray
- Murry
- Murtagh
- Mynogan
- Naois
- Neal
- Neale
- Nealon
- Neese
- Neil
- Neill
- Nell
- Nels
- Nelson
- Nemausus
- Newlin
- Newlyn
- Niall
- Niallan
- Niece
- Nisien
- Nolan
- Noland
- Nyle
- Oisin
- Oran
- Orin
- Oscar
- Osckar
- Oskar
- Osker
- Ossian
- Owen
- Owin
- Owyn
- Pendaran
- Pert
- Perth
- Phelan
- Powell
- Pryderi
- Pwyll
- Quin
- Quinn
- Reagan
- Reaghan
- Regan
- Reghan
- Rivalin
- Ronan
- Roy
- Sativola
- Sawyer
- Scilti
- Setanta
- Sheridan
- Sidwell
- Sloan
- Sloane
- Sugn
- Tadhg
- Taliesin
- Tanguy
- Taran
- Teaghue
- Teague
- Tegid
- Teirtu
- Teithi
- Teyrnon
- Tiernan
- Tiernay
- Torrey
- Tory
- Trahern
- Tremaine
- Tremayne
- Trevor
- Trwyth
- Tuireann
- Turi
- Twrch
- Uchdryd
- Uisnech
- Usenech
- Varden
- Vardon
- Varney
- Vaughn
- Vortigern
- Weylin
- Weylyn
- Wynne
- Yspaddaden