| Given Name and Variants | Diminutives and Derivatives | Meaning |
| Abban, Abb« n, Ab« n | 'little abbot' | |
| € bhartach | ||
| Adomn« n, Adhamh« n, Adhamhnán, Adamnan, Eunan | 'timorous' | |
| Adanodan | ||
| Ailbhe, Ailbe, Alby | albho, 'white'? | |
| Ailgel, Ailill | ||
| Ailín | ||
| Aininn | ||
| Ainmire | ||
| Airechtach | ||
| Airmedach | ||
| Alabhaois, Alaios | ||
| Alastrann | ||
| Alchad | ||
| Alstrom | ||
| Amalgaid | ||
| Amergin | ||
| Anluan, Anlon | 'hound/warrior? | |
| Aodh, Aodha, Aoidh, € ed, € edh, Aedus | Aodhaigh, Aodhán, Aodán, , Áedán, Aiden, Aidan, Edan, Aodhagán, € educ« n, Aogán, Egan | 'fire' |
| Aodhfin | ||
| Aonghas, € engus, Aonas, œ engus, Angus | 'one choice', 'sole strength' | |
| Ardar | ||
| Árdghal, Ardal, Argal, Artegal, Arthgallo | ard 'high' or art 'bear' + gal 'valour' | |
| Art | Artan | 'bear' |
| Artúr, Artuir | Arthur | |
| Baeth | Baetan | |
| Balor | ||
| Bairne | ||
| Baithaus | ||
| Banan | ||
| Banbhan | ||
| Baothghalach | ||
| Barrfind, Bairrfhionn, Barrin | Bairre, Barre, Barra, Barry | white-headed |
| Beacán | ||
| Beag | ||
| Beairtle | ||
| Beanón | ||
| Bearach, Berach | Pointed/sharp | |
| Bearchán | ||
| Beartlaí | ||
| Becan | ||
| Behellagh, Behillagh | ||
| Benen | ||
| Beolagh | ||
| Beothach | ||
| Bercan, Berchan, Bercnan | ||
| Bergin | ||
| Blanaid | ||
| Boethis | ||
| Bran | ||
| Brandubh, Brandrub, Branduff | ||
| Breadán | ||
| Bréanainn, Breandán, Br¾ nainn, Brendan | 'brand/flaming sword' or Welsh breenhin 'prince'? | |
| Bresal, Bressal, Brasil, Breas, Breasal | ||
| Brian, Brion | high/noble | |
| Bricc | ||
| Britanmael | ||
| BrÙ g« n, BrÙ cc« n | ||
| Brón | ||
| Bruaidheadh | ||
| Bruatur | ||
| Bruddai | ||
| Buadhach | ||
| Buagh | ||
| Buaigre | ||
| Cadhla | ||
| Caeilte | ||
| Caentigern, Kentigern | ||
| Cainchinne? | ||
| Cainnech, Cainneach, Canice | handsome, fair one | |
| Cairbre, Coirbre, Cairpre | ||
| Caircil, Cearcill | ||
| Caireall, Cairell, Coireall, Kerill | ||
| Cairthinn | ||
| Caiside | ||
| Calbhach, Calvagh, Calbach | 'bald' | |
| Callough | ||
| Caoilte | ||
| Caoimhe | Caiomhín, Caoimhín Caiomheán, Caomhgain, Cáemgen, Coemgen, Kevin, Kevan | caomh 'kind/gentle, beloved/beautiful' |
| Caolán, Caolainn? Kelan | ||
| Caraid | ||
| Carantoc | ||
| Cárthach, Cartach, Cartagh, Carthagh | ||
| Cascorach | ||
| Cassidan | ||
| Cathal, Cahal, Cathald, Catheld, Cathaldus, Kathel | 'battle + strong' | |
| Cathan, Cah« n, Cahan, Kane | 'battle + rule' | |
| Cathaoir, CathaÍ r, Cahir, Cathfer, Caffar | 'cath' battle + 'vir' man | |
| Catharnach, Cathrannach? | ||
| Cathasach | ||
| Cathbadh, Cathbad | ||
| Cathbharr | ||
| Ceallach, Ceallagh, Ceallachán, Ceollach, Cellach, Kellach, Kelly | ceall 'monastery/church' or 'bright-headed' | |
| Cearbhall, Cerbhall, Cerball, Cearul, Cearull, Carroll | Cearbhallán | 'cearbh', hacking? |
| Cearnach | ||
| Cedach | ||
| Celsus | ||
| Celtchair | ||
| Cenn | ||
| Cesarn | ||
| Chattan | ||
| Chulain | ||
| Cian, Kian, Kean, Keane | Cianán | 'ancient/enduring' |
| Ciabh« n | ||
| Ciárán, Kieran, Queran? | 'ciar' black | |
| Ciardan | ||
| Ciardha | ||
| Ciardubhán | ||
| Ciarrai | ||
| Cillian, Cillín, Cill¾ ne, Killian, Kealan, Kilian, Killan | 'ceallach' strife or 'ceall' church | |
| Cinneíde, Cinneídigh | Cinneíddin | |
| Cionadh, Cionaodh, Cin« ed, Cin« eth, Cin« edh, Kenneth | ||
| Cnán | ||
| Coan | ||
| Cobhran | ||
| Cognat | ||
| Colcu | ||
| Comhghall, Comhgall, Comgal, Comgell, Congal, Cowal | 'together + pledge/hostage' | |
| Comhghán, Comghán, Comgán, Comman? Congan | 'together born' ie twin | |
| Conaing | ||
| Conall, Connell | 'wolf + strong' | |
| Con« n, Conan, Conant | 'cu' hound | |
| Conchobar, Conchobhar, Conchubhar, Conchubor, Conchúr, Cnochúr, Conquhare, Conaire?, Connor, Conor | 'lover of hounds/wolves?' | |
| Congalach | ||
| Conganchas | ||
| Conn | 'chief' | |
| Connlaeth, Connlaoth, Connlaodh, Connlaogh, Connlaoi, Conleat, Conl« ed, Conleth, Conla, Conley | 'chief' + 'lord' (conn + flaith)
or 'prudent/chaste' + 'fire' (connla + « edh) |
|
| Coplait | ||
| Cormac, Cormacc, Corb |
corbaid 'defile' + mac 'son' |
|
| Cothric | ||
| Couleth | ||
| Cridan | ||
| Crimhthann | ||
| Crofinn | ||
| Cromanus | ||
| Crónán, Cronin | swarthy' | |
| Crosson | ||
| Cruamthain | ||
| Cuán | little hound | |
| Cuileann, Cuileán, Cuilén, Cuilinn, Cullen | Cuilenn« n? | |
| Cuimín, Comyn | 'cam' twisted | |
| Cuinn | ||
| Cuirithir | ||
| Cumall | ||
| Cúmhaighe, Cúmhaí | ||
| Curoi | ||
| Curran | ||
| Cuthacar | ||
| Daig, Daigh | 'flame/fire' | |
| DaimÍ ne, DaimhÍ n, DaimÍ n, Davin | dam 'deer/ox' | |
| Dálach, Daly, Daley | dál 'assembly' | |
| Damaen, Daman, Dámnh | ||
| Dara, Darach, Daragh, Darragh, Darrah, D« ire, Daire | 'oak' or 'fertile' | |
| Déaglán, Decl« n, Declan | ||
| Deicola | ||
| Dela | ||
| Demna | ||
| Desle | ||
| Desmond, Desmumnach, Deasún | Dessi | 'man of Muman'; ie from South Munster |
| Devlin | ||
| Diarmait, Duirmhuid, Diamit, Diarmaid, Diarmuit, Dermot, Kermit | Darby | 'without envy?' |
| Dieul | ||
| Dimnaus | ||
| Disisbod | ||
| Diuma, Dimma | ||
| Doibhilin | ||
| Doireidh | ||
| Domhnall, Domnall, Donál, Dónall, Dónall | 'world + mighty' | |
| Donn, Don | brown/king | |
| Donnabhán | ||
| Donnán, Donan | ||
| Donnchadh, Donnchad, Donncha, Dunchad, Donagh, Donogh, Donough, Dunecan | 'brown' + 'battle or lord' | |
| Donndubhán, Donndubán, Donovan | donn' brown + 'dubh' black | |
| Donngal | ||
| Doran | 'desc of Deoradhán' exile/wanderer | |
| Dorchaidh | ||
| Dubhaltach, Dubaltach, Dubultach, Dualtach | Dualta, Duald (Dudley) | 'black-haired/dark-limbed' |
| Dubhán, Duban Duane, Dowan? | 'dark/black' | |
| Dubhdara, Dubhdarach | 'black' + 'of oak' | |
| Dubheidir | ||
| Dubghall, Dubgall, Dougal | 'dark foreigner' (ie a Dane) | |
| Dubhghlas, Dubhglas, Dughlas, Douglas | 'dark' + 'blue' | |
| Duigenan | ||
| Dungal« ch | ||
| Eachann | Ea | |
| Eachdhonn | ||
| Éadbhard | ||
| Éanna, Énnae, Enda | 'birdlike'? | |
| Earna | Earnán | |
| Echen | ||
| Éibhear, Éibhir, Heber | ||
| Éigneach, Aneas, Aeneas | Éigneachán | violent fate, death |
| Eimar | ||
| Eiméid | ||
| Éimhín, Éimíne, Evin, Evan | ¾ im 'ready/prompt'? | |
| EirnÍ n, ErnÍ ne, Ernin, Ernan | iarn 'iron'? | |
| Eithear | ||
| Elochad | ||
| Emianus | ||
| Ennae | ||
| Eochaidh, Echaid | ||
| Eogabail | ||
| Eóghan, Eogan | 'born of the yew' | |
| Eolus | ||
| Erc, Ercus | ||
| Eremon | ||
| Fachnan | ||
| Fachtna, Fiachna | 'hostile'? | |
| Faebhar | ||
| Fáilbe, Fáilbhe | ||
| Failge | ||
| Faolán, F« el« n, Felan, Foelan, Fillan | 'wolf' | |
| Farann« n | ||
| Faughnan | ||
| Feagh | ||
| Fearadhach, Fearadagh, Farry | 'manly' | |
| Feardorcha, Ferdorcha, Fardoragh, Ferdorccha | Man + dorcha 'dark' | |
| Fearghal, Fearghall, Fergal, Ferghil, Ferol | fear 'man' + 'gal' valour | |
| Fearghas, Fearghus, Fergus | 'man' + gus 'vigour' | |
| Feichín, FechÍ n, FechÍ ne, Fehin, Fechin | 'fiach' raven | |
| Feidhlim, Feidhlimidh, Fedelmid, Feidlim, Féilim, Felim, Felimy, Phelim | 'ever good'? | |
| Feuillan, Fillan | ||
| Fiachra, Ficare, Fiach | fiach 'raven'; or 'battle king' | |
| Find | Findan | |
| Finegas | ||
| Fingar | ||
| Fínghín, Finghin, Fingin, Fínín, Fineen | wine + born | |
| Finn, Fionn | Fionnán, Finnian, Finian, Finnén, Fionán, Fianan | white/fair |
| FÍ nnachta | ||
| Finnchad | White + battle | |
| Finntan, Fionntán, Fintan, Fiontan, Fiontán | 'white/fair' + 'ancient' or 'fire' | |
| Fionnbhárr, Fionnbhar, Findbarr, Finbar | Bairre, Barry, Barra | 'white head' |
| Fios | ||
| Flaithbertach | ||
| Flaithrí, Flurry, Florry | 'flaith' prince/leader + 'rí' king | |
| Flann, Flainn | Flannán, Flannacán (Florence) | 'red/ruddy' |
| Flannchadh | 'red warrior'? | |
| Fochmare | ||
| Fogartach | ||
| Foillas | ||
| Forgael, Forgall | ||
| Fortchern | ||
| Frainc | ||
| Froichan | ||
| Fuatach? | ||
| Fulan, Firlan | ||
| Fursa, Fursey | ||
| Gaithan | ||
| Gall, Goll | ||
| Gallech | ||
| Garbhán, Garb« n, Garvan | garb 'rough' | |
| Garfhidh | ||
| Garnard, Garnat | ||
| Gilian | ||
| Glaisne | ||
| Glassan | ||
| Gnathach | ||
| Gobb« n, Gob« n, Gobann, Goban | goba 'smith' | |
| Gordan | ||
| Gorm« n, Gorman | 'dark/swarthy' | |
| Gosan, Gusan | ||
| Gráda | ||
| Guaire | 'noble/proud' | |
| Herygh | ||
| Hewney | ||
| Huydhran | ||
| Iarbonel | ||
| Iarlaith, Iarlaithe, Iarfhlaith, Jarlath | 'ior' ? + 'flaith' leader | |
| Iobhar, bhar, Ibhor, Ibor, Abaris | iobar 'yew tree' | |
| Ighneachán | ||
| Imchath | ||
| Incha | ||
| Indract | ||
| Ingnathach | ||
| Ióéil | ||
| Íosóg | ||
| Irial | ||
| Irimia | ||
| Iucharba | ||
| Iúd | ||
| Iúil | ||
| Joavan | ||
| Kenncoh | ||
| Kescog | ||
| Labhcás | ||
| Labraid, Labhraidh, Lowry | 'speaker' | |
| Labr« s, Labhr« s Libra? (Laurence) | 'laurel bush' | |
| Lachtna | 'milk-coloured' | |
| Laegh, Leagh, Laoghaire, L« egaire, Laeghaire, Leary | 'calf-herd' | |
| Laistranus | ||
| Laoighseach, Laoiseach | from Laois, Leinster | |
| Laisr¾ an, Laisr¾ n | Molaisse, Molaise | lasair/laisre 'flame' + 'fíon' wine |
| Lavren | ||
| Leann« n, Lenn« n | 'sweetheart/lover' | |
| Lithgean | ||
| Lochlainn, Lochlann, Leachlainn, Laughlin, Loghlin | from Norway, land of the lochs? | |
| Lodan | ||
| Lomán, Lomm« n | lomm 'bare' | |
| Lonán | lon blackbird | |
| Lorcán, Lorcann, Lorccán | lorcc 'fierce/dumb/cruel'? | |
| Lua | ||
| Luchta | ||
| Lugh, Lughaidh, Lugaidh, Lughaid, Lugaid, Luger, Lewy | bright/shining | |
| Lysagh | ||
| Machar | ||
| Maduta | ||
| Maedoc, Maidhc, MaodhÙ g | ||
| Mairid | ||
| Manchan | ||
| Manus | ||
| Mathghamhain, Mathúin, Mathghamhaim, Mathgamain, Mahon | bear | |
| Meadhran, Medran | ||
| Meallán, Mell« n, Mellan, Mullin? | 'lightning' | |
| Medabh | ||
| Mel | ||
| Meldan | ||
| Melkorka | ||
| Melrone | ||
| Meubred | ||
| Midir, Midhir, Mider? | ||
| Mirin | ||
| Mo-Bioc | ||
| Mochoemoc | ||
| Mochta, Mochteus, Mochua | ||
| Mochumma | ||
| Modomnoc | ||
| Mogue | ||
| Molling | ||
| Moloi, Molua, Moluag | ||
| Mong« n | ||
| More | ||
| Morna | ||
| Muchin | ||
| Mughran | ||
| Muirghean | ||
| Muirgheas, Muirgius, Muiris | 'muir' sea + 'gus' choice | |
| Muiriartach, Muicheachtach, Muireadhach, Muirchertach, Muiredach, Muiríoch, Murtagh, Murty, Briartach | Muirí | muiredach 'lord/master' or 'seaman/mariner' |
| Munnu | ||
| Mura, Muranus | ||
| Murchad, Murchadh, Murcha, Murrough, Muru | 'sea-battler' | |
| Naoise, NÙ ise | ||
| Nathi | ||
| Nemid | ||
| Nevan | ||
| Niadh | ||
| Niall, Neal, Neill, Neil | nel 'cloud', or passionate? champion? | |
| Ninian | ||
| Notal | ||
| Nuallán | nuall 'champion' | |
| Odhrán, Odr« n, Odran, œ r« n, Oran, Odhar | odhar 'dun/sallow' | |
| Ógán | ||
| Oisín, OissÍ ne, Ossian, Oisin, Osheen | os 'deer' | |
| Oscar | 'deer' + cara 'friend' | |
| Otteran | ||
| Ounam | ||
| Phelan | ||
| Piran | ||
| Rádhulbh | ||
| Raghallach, Reilly, Riley | ||
| Riaghan, RÍ ogh« n, RÍ an, RÍ g« n, Rian, Ryan, Royan | ri 'king' | |
| Rónán, Ronan, Rownan | rón 'seal' | |
| Rórdán, Riordan, Reardan, Rearden, Ríoghbhardán | king + poet/bard | |
| Ros | ||
| Ró adhán, Ró ad« n, Rhod« n, Rodan, Ruan, Rowan | 'red-haired' | |
| Ruaidhrí, Ruaidrí, Ruairí, Rudraighe? Rory, Roderick, Roricus | 'red/great' + 'king' | |
| Ruidhe | ||
| Saebhreathach, Sáerbrethach, Saorbhreathach | ||
| Saoirse | 'freedom' (mod.) | |
| Sanctan | ||
| Saranus | ||
| Scelianus | ||
| Scolaidh, Scolaighe | ||
| Sé | ||
| Seachnall | ||
| Séafra, Seafraid | ||
| Séaghdha, Ségdae | hawklike/fine/godly? | |
| Seanán, Senan, Seanach, Senach | sen/sean old/wise | |
| Séarlan | ||
| Sedna | ||
| S¾ g« n, Seaghán? Segenus | ||
| Sheary | ||
| Shiel | ||
| Siadhal, Siaghal | ||
| Siochfioldha | ||
| Sinon | ||
| Siran | ||
| Siseal | ||
| Sól | ||
| Starn | ||
| Steimhin | ||
| Suibhne, Suibne, Sweeney, Sivney? | 'well-going'? | |
| Suthan | ||
| Tadhg, Tadg, Tadc, Tegue, Teigue, Teige, Taig, Taidgh, Tiege | Taidhgín | 'poet/philosopher' |
| Tathai | ||
| Tiamhdha | ||
| Tighearnach, Tighernach, Tiarnach, Tiarna, Tierney | tighearna 'lord' | |
| Tighearnán, Tigern« n, Tiarnán, Tiernan | '' | |
| Tiomóid | ||
| TÍ rech« n | ||
| Toirdhealbhach, Toirdhealbharch, Tairdelbach, Toirealach, Tárlach, Tirloch, Traolach, Turlough, Turley, (Terence) | 'instigator/abettor' | |
| Tomaltach? | ||
| Torrianus | ||
| Treon | ||
| Tó athal, Tuathal, Toal | ruler of a tribe | |
| Tyrone | placename | |
| Uaithne | ||
| Uallachán | ||
| Uar | ||
| Uileos | ||
| Uillen | ||
| Úistean | ||
| Ultán, Ultan | 'an Ulsterman' | |
| Urthaile | ||
| Usliu | ||
| Uthmaran | ||
| Vigean | ||
| Wyllow |
This collection of names was compiled by Kate Monk and is ©1997, Kate Monk.
Copies may be made for personal use only.