Introduction
READ Insights: Old Irish First Names & aliases
Index Guide
Irish Gaelic [ga]
Latinised [la]
Anglicised [en] census link (Variations: nicknames, aliases, alternative spelling)
Please note:
The original Irish/ Gaelic is followed by how it was recorded in Latin (italics).
- Some letters in the English alphabet do not occur in Irish.
- Old Gaelic names were often batched together and disguised by one shared Anglicisation.
- To flag this, some Irish / Gaelic names (from entirely different roots) have been combined in the same box.
- How a Gaelic name was Latinized varied (and one individual could appear under any or all in the same parish register).
- Use of the Latin form of a Gaelic name was not exclusive to church records e.g. Thaddius.
The purple indented text indexes all known variations in English (to include nicknames).
- Links to the 1901 Census have been included for the most popular spelling variant.
- [Origin] has been included as a hint to the county of origin, where the association is significant.
The key takeaway is, of course, that a Gaelic name could have been recorded under a variety of "translations" (one individual could have multiple aliases) depending on the transcriber.
To add to this index, please click HERE.
How to Search the Index
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Hold down the CTRL key [Mac = command].
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Type in the name (or part of) and press RETURN.
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To submit a query or a suggestion, click here.
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Some popular Irish Gaelic boys' names won't appear on this "Old Irish" list if they were introduced later by Normans e.g. Liam / Seán
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Our index to Irish Christian names of Norman origin is coming soon. For notifcation, be sure to sign-up / join here.
IrelandXO Index: OLD IRISH BOYS NAMES OF GAELIC ORIGIN
A
Aibhistín, Oistín, Águistín, Abhuistín, Ágaistín.
Augustinus, Augustus
Augustine, Austin, Gus, Gusty, Gussie, Gussy, Austey
Ailbe
Albertus
Albert, Elvis, Ailbe, Bertie, Albin, Ailbhe, Alby, Albie, Bert, Burt.
Hugo , Hugonis, Hugones
Hugh, Hubert, Herbert, Aidan, Aiden, Aedh, Hughie, Huey, Aedán, Ádhán, Aden, Hewdie, Huedy, Hiúdaí.
Aodhán Edanus
Aidan, Moses, Mogue, Aedan, Ayden, Aodan, Aydin, Aydan, Adyn, Aidyn, Aedyn, Aogán, Aodhagán, Aodhgan.
[see also: Maodhóg below]
Aonghas
Antonius, Anthoni
Angus, Aonas, Anthony Aeneas, Eneas, Ennis, Enos, Gus, Aonghus, Anton, Aengus, Ant, Angaidh.
[see also: Naos below]
Airt
Arturius, Artorius
Art, Arthur, Artúr, Artie, Arty, Addie, Ady.
B
Beairtle, Bartlí / Partalán
Bartholomaeus
Bartholomew, Bartle, Bart, Bartie, Bertie, Bartley, Bartly, Batt, Bat, Barty, Barthow., Bartow., Partalón, Partholón
Brendanus
Bernardus / Barnabus / Boeticus
Bryan, Bernard, Barnaby, Barney, Brien
C
Cairbre
Carbery, Carbry、 Carberry, Carbary
Caoimhín
Kevin, Cian, Kevan, Kevyn
Cian
Keane, Cain, Charles
Cathal
Carolus Carlus
Charles, Cahal, Charlie, Charley, Sorley; Chas. Cha's, Charlo, Carrol, Carl, Karl,
[see also: Cearbhall below]
Cearbhall
Carolus Carlus
Carrol, Charles, Carl, Karl, Cearbhaill, Charles, Charlie, Charley, Sorley; Chas. Cha's, Charlo
Ciarán
Kyrianus
Kieran, Ciar, Kieron, Kerne, Cairn, Kierrin, Kyran, Kieren, Cairan, Kernan
Cillian
Killian
Conal
Nicholas
Colin, Collin
Colmán, Colm
Columba
Coleman, Colman Callum
Conchúr
Cornelius, Constantinus
Conor, Connor, Conchubhar, Con, Constantine, Conn, Connie, Conny
Conn
Cornelius, Constantinus
Con, Constantine, Conn, Connie, Conny, Nialus
Conall
Cornelius, Constantine
Connell, Con, Conal, Coneily, Condy, Condaí, Conn, Connie, Conny, Condie, Condey.
Cionnaith
Kenneth, Canice, Kenny, Coinneach
Cormac
Corneilius, Cormacus
Cormack, Charles, Cor, Corly, Corey, Corrie Neily, Neilus, Neil Cormick, Cormk.
Cúmhaí
Cooey, Quentin, Hughey, Quintin, Quinton, Conmhaighe
[Origin: Derry]
D
Daire
Darra, Darragh, Dara, Darach, Darragh
Déaglán
Declani Declanus
Declan, Declán
Diarmaid
Demetrius / Dermicius
Dermot, Darby, Jeremiah, Jerome, Jerry, Derry, Diarmuid
Donnacha,
Donaldus, Duvenaldus
Denis, Donncha, Donny, Donnie, Dinnis, Dinny, Dinnie, Den, Don, Donie, Donal, Donaghy Donough, Donnchadh, Donnchad, Donnchadha, Dúnchad,
Donnabhán
Dyonisius, Dionisius
Donovan Denis, Donncha, Donny, Donnie, Dinnis, Dinny, Dinnie, Den, Don, Donie, Donal
Dónall
Danielus, Danieli, Donaldus, Donatius
Donald, Daniel, Donal, Dan, Danny, Donny, Donnie, Don, Donie, Donat, Domhnall, David (handwriting error)
Dúghlas
Douglas, Doug, Douggie, Dougy, Dubhghlas
E
Éamon, Éanna
Edmundus Eduardus
Edmond, Enda, Edward, Edmund, Ed, Eddie, Eddy, Ned, Neddy, Edwin, Edm., Edw. Éamonn
Éibhear, Íomhar
Heberus Eberous Iberus
Ever, Heber, Ivor, Iobhar, Ivarr
[Origin: Ulster]
Eoin
Eugenus Oenus Owenus
Eugene, Owen, Eoghan
F
Fachtna
Fachtanus
Festus, Festy, Festie, Factnan
Feargal
Furgallum Fergallus Fernaldus Ternaldus
Farrell, Fergal, Ferdinand, Virgil, Fergie, Fergy / Ferdie, Fardy, Farrill, Ferrigal, Farrigal, Farage. Farrelle, Fregal
Feardorcha
Fredericus Fridericus
Frederick, Ferdinand, Fred, Freddie, Freddy Ed, Eddie, Eddy / Rick, Ricky
Fearghas
Fergusius
Fergus, Ferdinand
Fardy, Fergie, Fergy, Gus, Gusty, Gustie, Gussy
Féilim, Feidhlimidh
Fidelmius Fedlimius, Fidelmidius Fedlimidius
Phelim, Felix, Phillip. Phelimy, Felimy Pheily, Phil, Philly, Phelen, Phelan / Pilib, Phalim, Phelam, Phelem, Pheliam, Phelem, Phelm, Phelum. Felim,
Fionbarra, Barra
Finnbarrus
Finbar, Barry, Fionnbharr
Fion, Finín
Finnius, Finnianus Fionanus, Fingenus Finginus
Finn, Fineen, Florence, Florrie, Florry, Flor, Fionan, Finnan, Finnian, Finghín, Finneen, Finnin
Fiontán
Fintanus
Fintan / Fenton, Ferdinand
Flann, Flannán, Fitheal
Flannus, Flannanus
Flan, Florence, Flannan, Florence, Florrie, Florry, Flor, Fithcheallach
Fiach/ Feichín
Fiacrus Fiachus Fiachrius Festus /Fechinus
Festus, Feagh, Fiachra, Fiacre
G
Giolla Íosa
Gilisius
Gill / Giles, Gillisa, Gillessa
Giolla na Naomh
Sanctianus
Glaisne
Glasnaeus
Glasny, Glas, Glass
I
Iognáid
Ignatious Agnetious
Ignatious
Iarlaith
Irlathus
Jarlath
Irial
Irilaus
Earl, Errol
L
Lachtna
Lucius
Lucius, Luke
Lúcán
Lucanus
Lucan, Luke
Laoiseach, Laoighseach
Lucius
Lysagh, Lucius, Louis, Lewis
Lochlainn, Leachlain
Lochlunius
Loughlan, Loughlin, Lackey, Lacky, Lachy, Lanty, Larry, Luke, Luis, Laurence, Lawrence,
Lomán,
Lomanus,
Lonán
Lonanus
Lonan
Lorcán
Lorcanus
Lorcan, Lawrence
Lughaidh
Lugadius
Lorcan, Lewis, Louis, Aloysius, Louey
M
Maodhóg
Maidocus
Aidan, Moses, Mogue, Aedan, Ayden, Aodan, Aydin, Aydan, Adyn, Aidyn, Aedyn, Aogán, Aodhagán, Aodhgan.
Magnus
Magnus, Maonus, Manis, Mannas, Mannus, Manues, Manas, Mannasses, Mannassas, Manasus, Manaus, Mances, Manacus, Mandy, Manty, Mundy, Manes, Mangas, Manns, Maney, Manney
[Origin: Donegal/ Derry]
Maolbheannachta
Benedictus
[Origin hint: Galway]
Mathghamhain
Mathgamanius
Magown, Matthew, McGown, Matt, Matty, Mattie
Maolmórdha
Maelmorus
Myles, Miles, Milles, Mills, Moyles, Meles, Males, Maolir, Meyler, Mylerus, Milerus, Meyles, Mylie
Maolmhuire
Maelmarius
Miles, Myles, Mortimer Meyler, Milo, Miles, Myles Morty, Murthy
Maolmuiris
Maelmarius
Maurice, Morgan, Mortimer Meyler, Milo, Miles, Myles Morty, Murthy
Maolsheachlainn, Maeleachlain
Malachi, Malachius
Loughlin, Malachy
Melachlin, Malachy, Lacky, Malachey, Malichy, Malicky, Mallachy, Malochy, Mallaghan, Millican, Michelan, Lackey, Lachey, Myles, Miles, Maoileachlainn, Melaghlin, Laughlin, Lanty, Milo
Maolcholaim
Malcolmus
Malcolm, Malcom, Malcohn, Malchom
[Origin: Northern Ireland]
Muirgheas | Muiris
Murgessius | Mauritius
Maurice, Morris, Morries, Mouris, Morros, Marice, Maruice, Maurace, Maurce,
[Origin: Kerry, Cork & Limerick]
Muircheartach
Murchertachus
Murtaugh, Mortimer Murty
Murchadh
Murchadus
Murrough, Morgan, Murty
Muiríoch, Muireadhach
Murry, Murray, Mury, Mary,
N
Naomhán
Sanctanus
Nevin, Nevan
Naos
Aonghus, Niece, Nicholas, Nace, Nence, Neece, Neese,
[Origin hint: Ulster]
Neasán, Nassán
Nesanus
Niall, Néil, Niallán
Niallanus Nigellus
Neil, Nicholas, Niallus, Niellus, Nellus, Neal, Nei, Nigel
O
Odhrán
Odranus / Otteranus
Oran, Otheran, Orn
Oisín
Ossenus
Ossian, Ossin
Osgerus
Osgur
R
Raghnall
Raganaldus/ Reginaldus Randlphus
Reginald, Ronald, Randal, Raonall, Randall, Randolph, Ralph, Rághnall
Ronán
Ronanus
Ronan, Rownan
Ros
Rossius
Ross, Rossa
Ruairí, Ruaidhrí, Ránall,
Rodericus, Rudericus
Rory, Roderick, Roger, Roddy, Randal, Ronald, Raghnall, Roddy, Ragnaill,
S
Saerbhreathach
Justinus
Justin, Justan, Justyn, Justen, Juston, Justinian
[Origin: Cork]
Séadna
Sedanus, Sedonius, Sidonius
Sidney, Sydney, Sydny, Sidny
Seannán , Sionnán,
Senanus
Senan, Sennan, Synan, Sinon, Sinan,
[Origin: Clare]
Somhairle
Somerledus
[Origin: Antrim]
Suibhne
Suibneus
Sivney, Simon, Silvester, Sylvester, Selvester, Silvy
T
Tadhg
Thaddeus, Thadius, Timotheus
Timothy, Tim , Thady, Thade, Theady, Thaddy, Tade, Teague, Teige, Taidhgin
Toirdhealbhach
Tordelvachus, Tobias,Terentius, Terricus
Turlough, Terence, Charles, Terry, Traolach, Tarla,Tarlach, Toirealach, Turlough, Tirlough
Tighnearnach, Tighearnán
Tigernachus, Tigernanus
Tiernan, Tiernach,Tierney
Tomhaltach
Tomaltachus, Tumultachus
Tumelty, Timothy, Tobaltagh
Tuathal
Tuathalius,Tulius
[Origin: Donegal]
U
Uaithne
Antonius
Owney, Anthony, Uaitne, Hewney, Oney, Oynie, Onney, Antony
Ultán
Ultanus
Ultan, Ulty, Ultin, Ulten, Uleten, Ulteena
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BACK TO Old Irish First Names & aliases
READ MORE Irish Naming & Baptism Traditions | Irish Surnames 101
Sources
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Male Forenames in the 1901 Census of Ireland
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LibraryIreland.com
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Ainmneacha Gaelacha (translated from Irish)
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Irish First Names & Origins