IrelandXO Insight - Old Irish boys' names & aliases

Saturday, 1 February, 2020
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Does your Irish ancestor only appear on record once? Do other records seem to match, save for the first name? If you are flummoxed by how your ancestor could have so many aliases our unique index to those elusive Old Irish boys' names will help.

We have created an index of the most common names of native, old Irish  (pre-Norman) origin that were still popular first names for boys in 19th-century Ireland. Many of these names were later disguised by Latin and English "translations". This index is particularly useful for breaking down brick walls where an individual does not appear on record as expected.

In the early 20th century, confidence in the official use of one's authentic Irish (Gaelic) personal name grew.  So, in the Census of Ireland for example, a given name may have been recorded in English in 1901, but in Irish (or alternative spelling) in 1911. 

To facilitate your Irish ancestry research, we will continue to update this index with as many known spelling variations as possible. To contribute to this resource, click HERE

 

IrelandXO Insight - tricky Old Irish boys' names & aliases

READ FIRST Insights: Old Irish First Names & aliases

Index Guide

Names have been indexed in a two-column grid [Irish-English].

  • Some letters in the English alphabet do not occur in Irish.   

The lefthand column indexes the original Irish/ Gaelic and how it was recorded in Latin (italics).

  • 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 right-hand column 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. 

Irish

Gaelic [ga]

Latinised [la] 

Anglicised [en] census link

Variations: nicknames, aliases, alternative spelling

To add to this index, please click HERE

How to Search the Index

To research a particular name (without having to scroll) use the FIND function on a desktop PC. The following keyboard shortcut will open a search/ find window:

  1. Hold down the CTRL key [Mac = command].

  2. Press F.

  3. Type in the name (or part of) and press RETURN.

  4. No results? Re-try using a partial spelling of the name. 

  5. To submit a query or a suggestion, click here

  • 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 

  • 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   Augustinus

Oistín   Augustus

Augustine,

Austin, GusÁguistín

GustyGussie

Gussy, Austey,        Abhuistín, Ágaistín.

Ailbe 

Albertus

AlbertElvis

Ailbe 

BertieAlbin

Ailbhe, Alby, Albie, Bert, Burt.

Aodh          Hugo    Hugonis, Hugones

HughHubert

Herbert

Aidan, Aiden,  AedhHughieHuey,    Aedán, Ádhán, Aden,    Hewdie, Huedy, Hiúdaí.

Aodhán   Edanus

Maodhóg    Maidocus

AidanMoses 

Mogue 

AedanAydenAodan,    Aydin, Aydan, Adyn,  Aidyn,  Aedyn, Aogán, Aodhagán, Aodhgan.

Aonghas   Antonius

Anthoni

AngusAonas

Anthony  

Aeneas, Eneas,            Ennis, EnosGus,   Aonghus, AntonAengus, Ant, Angaidh.

[see also: Naos below]

Airt

Arturius, Artorius

ArtArthur

Artúr, ArtieArty,   Addie, Ady.

B

Beairtle / Bartlí 

Bartholomaeus

Partalán 

Bartholomew,

Bartle, Bart

Bartie, Bertie, BartleyBartly,      BattBatBarty,  Barthow.,  Bartow.,  Partalón, Partholón

Breandán

Brendanus

Brendan

Brendon, Brenden

Brian

Bernardus / Barnabus / Boeticus

Bryan, Bernard

Barnaby, Barney, Brien

C

Cathal 

Carolus Carlus

Cearbhall

Charles, Cahal 

Charlie, Charley, Sorley;  Chas. Cha's, Charlo

Carrol, Charles

Carl, Karl, Cearbhaill

Cairbre

Carbery 

Carbry、 Carberry, Carbary

Caoimhín

Kevin, Cian

Kevan, Kevyn

Cian
Keane, Cain, Charles

Ciarán

Kyrianus

Kieran, Ciar

Kieron, Kerne, Cairn, Kierrin, Kyran, Kieren, Cairan, Kernan

Cillian
Killian

Conal

Nicholas

Colin, Collin

Colmán 

Columba

Colm

Coleman, Colman

Callum

Conchúr

Cornelius

Constantine

Conor, Con 

Connor, Conchubhar

Conn

Cornelius

Constantine

Con

Conn, Connie, Conny/

Conall

Cornelius

Constantine

Connell, Con

Conal, Coneily, Condy, Condaí, Conn, Connie,  Conny, Condie, Condey.

Cionnaith

Kenneth, Canice

Kenny, Coinneach

Cormac

Corneilius

Cormacus

CormackCharles

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

Donnabhán                  Dyonisius / Dionisius

Denis, Dudley, Duncan

Donncha, Donny, Donnie, Dinnis, Dinny, Dinnie, Den, Don, Donie, Donal,  Donaghy  Donough, Donnchadh, Donnchad, Donnchadha, Dúnchad, 

Donovan, Denis

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 

Edmundus Eduardus

Éanna

Edmond

Enda, Edward

Edmund, Ed, Eddie, Eddy, Ned, Neddy, Edwin, Edm., Edw.  Éamonn

Éibhear 

Heberus Eberous Iberus

Íomhar

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

Féilim 

Fidelmius  Fedlimius

Feidhlimidh  Fidelmidius Fedlimidius

Phelim, Felix,  Phillip

Phelimy, Felimy Pheily, Phil, Philly, Phelen, Phelan / Pilib, Phalim, Phelam, Phelem, PheliamPhelem, Phelm, PhelumFelim,

Fionbarra 

Finnbarrus

Barra

Finbar, Barry 

 

Fionnbharr

Fion

Finnius  Finnianus Fionanus

Finín     

Fingenus  Finginus

Finn, Florence

Florrie, Florry, Flor, Fionan, Finnan, Finnian, Finghín, Fineen, Finneen, Finnin

Fineen / Florence

Fiontán   

Fintanus

Fintan  / Fenton
Ferdinand

Flann    Flannus

Flannán  Flannanus

Fitheal 

Flan, Florence

Flannan, Florence

Florrie, Florry, Flor, Fithcheallach

Fiach 

Fiacrus Fiachus  Fiachrius Festus

Feichín Fechinus

Festus, Feagh

Fiachra, Fiacre

G

Giolla Íosa 

Gilisius

 Gill / Giles   

Gillisa, Gillessa

Giolla na Naomh  Sanctianus

Nehemiah

Glaisne  Glasnaeus

Glasny, Glas, Glass

I

Iognáid 

Ignatious  Agnetious

Ignatious

Iarlaith 

Irlathus

Jarlath

Irial Irilaus

 

Earl,

Errol? (tbc)

L

Lachtna

Lucius 

Lucius, Luke

Lúcán

Lucanus

Lucan, Luke

Laoiseach 

Lucius

Lysagh, Lucius, Louis, Lewis

Laoighseach

Lochlainn 

Leachlain

Lochlunius

Loughlan, Lackey,

Larry, Luke,

Luis, Laurence,

Lawrence,   

Lacky, Lachy 

Loughlin, Lanty 

Lomán

Lomanus

Lonán

Lonanus 

Loman 

Lonan

Lorcán

Lorcanus

Lorcan,

Lawrence

Lughaidh  

Lugadius

Lorcan, Lewis
Louis, Aloysius, 

Louey

M

Manus   

Magnus  

Magnus, Maonus     

Manis, Mannas, Mannus, Manues, Manas,          Mannasses,  Mannassas, Manasus, Manaus, Mances, Manacus, MandyManty,   Mundy,    Manes, Mangas, Manns, Maney, Manney 

[Origin: Donegal/ Derry]

Maolbheannachta  

Benedictus  

Benedict

MacDara 

McDara

[Origin hint: Galway]

Mathghamhain 

Mathgamanius

Magown, Matthew 

McGown, Matt, Matty, Mattie 

Maolmórdha   

Maelmorus

 

Myles, Miles

Milles, MillsMoyles, 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   

Malachi 

Maeleachlain   

Malachius 

Melachlin, 

MalachyLacky 

Malachey, Malichy, Malicky, Mallachy, Malochy, Mallaghan, Millican,  Michelan, Lackey, Lachey, Myles, Miles, Maoileachlainn, Melaghlin, Laughlin, Lanty, Milo 

Loughlin, Malachy 

Maolcholaim  

Malcolmus 

Malcolm

Malcom, Malcohn, Malchom  [Origin: Northern Ireland]

Muirgheas 

Murgessius

Maurice, Morris,

Morries, Mouris, Morros, Marice, MaruiceMaurace,    Maurce,  [Origin: KerryCork & Limerick

Often merged with Muiris Mauritius

Muircheartach  

Murchertachus 

Murtaugh, Mortimer  Murty

Murchadh   

Murchadus 

Murrough, Morgan 

Murty

Muiríoch,

Muireadhach

Murry, Murray,

Mury, Mary, 

N

Naomhán

Sanctanus

Nevin, Nevan

Naos 

Niece, Nicholas, 

Nace, Nence,

Neece, Neese,

Aonghus 

[Origin hint: Ulster]

Neasán

Nesanus

Nason, Nassan

Nassán

Niall 

Niallanus Nigellus

NeilNicholas 

Néil, Niallán,

Niallus, Niellus,

Nellus, Neal, Nei

O

Odhrán 

Odranus/

Otteranus

Oran

Otheran, Orn

Oisín 

Ossenus

Ossian, Ossin

Oscar   

Osgerus

Osgur

R    

Raghnall  

Raganaldus/ Reginaldus Randlphus  

Reginald, Ronald

Randal, Raonall,

Randall, Randolph, Ralph, Rághnall

 

Ronán 

Ronanus 

Ronan 

Rownan

Ros 

Rossius

Ross 

Rossa

Ruairí 

Rodericus

Rudericus

Rory, Roderick,

Roger, Roddy

Randal, Ronald,

RuaidhríRánall, 

Raghnall, Roddy

Ragnaill, 

S 

Saerbhreathach  

Justinus

Justin  

Justan, Justyn

Justen, Juston,

Justinian

[Origin: Cork] 

Séadna 

Sedanus/ Sedonius

Sidonius 

Sidney

Sydney,

Sydny, Sidny

Seannán  

Senanus 

Senan, Sennan,

Sionnán, Sinan

SynanSinon

[Origin: Clare]

Somhairle  Somerledus

Sorley 

[Origin: Antrim]

Suibhne  

Suibneus

Sivney, Simon 

Silvester, 

Sylvester, Selvester, Silvy 

T  

Tadhg   

Thaddeus

Thadius

Timotheus

Timothy, Tim  

ThadyThade,

Theady, Thaddy,

Tade, Teague,

Teige, Taidhgin 

Toirdhealbhach  

Tordelvachus, 

Tobias

Terentius, Terricus

Turlough,

Terence,   

Charles, Terry

Traolach, Tarla,

Tarlach, 

Toirealach, 

Turlough, Tirlough

Tighnearnach 

Tigernachus/ 

Tigernanus

Tiernan, Tiernach

Tighearnán, 

Tierney 

Tomhaltach 

Tomaltachus/ Tumultachus 

Tumelty

Timothy,

Tobaltagh 

Tuathal 

Tuathalius/Tulius 

TullyToal   

[Origin: Donegal]

U

Uaithne

Owney, Anthony

Uaitne, Hewney, 

Oney, Oynie, 

Onney, Antony

Ultán

Ultanus

Ultan, Ulty

Ultin, Ulten,

Uleten, Ulteena

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What Next?

BACK TO Old Irish First Names & aliases

READ MORE

Irish Naming & Baptism Traditions

Irish Surnames 101

Sources

*translated from Irish