Boys names with origin `Irish`
Loading ...
| Name | Meaning | Derivations | Origin | |
| Adamanan | Little adam, of the red earth. | Irish | ||
| Aden | Fiery one. | Adan, Adin, Adon, Adyn, Aidan, Aiden, Aidin, Aidon, Aidun, Aidyn | Irish | |
| Aidan | Little fire. | Aidyn, Iaden | Irish, Gaelic | |
| Aindrea | Strong, brave, courageous one. a form of andrew. | Aindrea, Andrea, Andreas | Irish | |
| Alair | Happy | Alaire | Irish | |
| Alan | Handsome, fair, bright, happy. | Ailin (irish), Alaen, Alaene, Alain (french), Alaine, Alano (italian), Allan, Allen, Allin | Irish, Gaelic | |
| Allen | Handsome, fair, bright, happy. | Alan | Irish, Gaelic | |
| Arlen | Promise | Arlan, Arland, Arlin, Arlon, Arlyn | Irish, Gaelic | |
| Art | A rock; noble one from the lofty hill; bear; follower of thor, thunder. a short form of arthur, noble strength. | Arte | Irish, English, Icelandic, Scottish, Welsh | |
| Bain | Fair-haired | Baenbridge, Baenebridge, Baine, Bainebridge, Bayn, Baynbridge, Bayne, Baynebridge, Bbainbridge | Irish | |
| Baird | The minstrel. singer of ballads. | Bairde, Bard, Barde, Bayrd, Bayrde | Irish, Gaelic | |
| Banning | Little blond, fair-haired one; son of the slayer. | Irish, Gaelic | ||
| Bard | Poet | Baird (scottish), Bairde, Barde (french), Bardoul (french) | Irish, Gaelic | |
| Barra | Fair-haired. | Bara, Barah, Barrah | Irish | |
| Beacan | Small | Beacen, Becan, Becen | Irish | |
| Beagan | Little one. | Beegan | Irish | |
| Beamon | Good | Beemon | Irish | |
| Bearach | Spear-like one. | Irish | ||
| Beattie | One who grants blessings. | Beatie, Beatty, Beetie, Beety | Irish, Gaelic | |
| Becan | Little | Becen, Becin, Becon, Becyn | Irish | |
| Beegan | Little | Beagan | Irish | |
| Berach | Looking straight at the mark. | Berac, Berack, Berak, Birac, Birack, Birak, Burac, Burack, Burak | Irish | |
| Berkeley | Meadow where birch trees grow. | Barclay, Barklea, Barkleah, Barklee, Barkleigh, Barkley, Barklie, Barkly, Berklay, Berklea, Berkleah, Berklee, Berkleigh, Berkley, Berklie, Berkly | Irish, Old english | |
| Blade | Prosperity, gory, knife, sword; lean. | Blaid, Blaide, Blane, Blaney, Blayd, Blayde, Blayne | Irish, Old english | |
| Blaine | Slender; flame. | Blain, Blane, Blaney, Blayn, Blayne (irish) | Irish, Gaelic, Old english | |
| Blair | From the marsh on the field or plain; field of battle. | Blaire | Irish, Gaelic, Scottish | |
| Boru | Surname of a king who united ireland - killed in battle clontarf 1215ce. full name - brian boru. | Irish | ||
| Bowie | Blond-haired. | Bowee, Bowey, Bowy | Irish | |
| Boyne | White cow. | Boine, Boyn | Irish, Gaelic | |
| Boynton | From the white cow river town. | Boyntown | Irish, Gaelic | |
| Braden | From the broad valley, salmon. | Bradan, Brade, Bradie, Bradin, Bradon, Bradyn | Irish, Old english | |
| Brady | Spirited one from the long island; broad one. | Braedy, Braidey, Braidie | Irish, English, Gaelic | |
| Braedan | From the dark valley. | Braeden, Braydan, Brayden | Irish | |
| Brandan | Youthful, bold, brave; raven. | Branden, Brandon, Brendan, Brenden, Brendon | Irish, Celtic, Gaelic | |
| Brannon | From the beacon hill. | Branan, Branen, Brannan, Brannen, Brannin, Brannyn, Bransin, Brantson | Irish, English | |
| Brasil | War | Brasill | Irish | |
| Breck | Freckled | Brec, Breik (gaelic), Brek | Irish | |
| Brendan | Little raven; sword. | Brandan, Branden, Brandin, Brandon, Brandyn, Brannan, Brannen, Brannin, Brannon, Breendan, Brenden, Brendin, Brendon, Brendyn, Brennden, Brenndin, Brenndon, Brenndyn | Irish, Celtic | |
| Brennan | Sip, taste of water. | Brenan, Brenen, Brennen, Brennin, Brennon, Brennun, Brennyn | Irish, Gaelic | |
| Brian | Hill; strong one, honourable, virtuous. | Braiano (italian), Briant, Brien, Brient, Brion, Bryan, Bryant, Bryce (scottish, Brycen, Brydan, Bryden, Brydon, Bryon, Gaelic), Rian, Rien, Rion, Ryan, Ryin, Ryon | Irish, Celtic | |
| Brodie | Brother; second-born son; canal builder. short form of broderick | Brodee, Broden, Brodey, Brodi, Brodie, Brody | Irish, Gaelic, Scandinavian, Scottish | |
| Bryan | Strong one. | Brian | Irish | |
| C n n | Little hound. | Irish, Gaelic | ||
| Caden | Irish - spirit of war | Caeden, Caiden, Cayden | Irish, Celtic, Welsh | |
| Caelan | Powerful in battle. | Caelen, Caelin, Caelon, Caelyn, Cailan, Cailen, Cailin, Cailon, Cailyn, Calan, Calcalin, Cale, Callan, Callen, Callin, Caylan, Caylen, Caylin, Caylon, Caylyn | Irish, Gaelic | |
| Cairbre | Strong man. | Irish | ||
| Caley | Slender one from the meadow. | Calea, Caleah, Calee, Caleigh, Caley, Cali, Calie, Callea, Calleah, Callee, Calleigh, Calley, Calli, Callie, Cally, Caly, Kalea, Kaleah, Kalee, Kaleigh, Kaley, Kali, Kalie, Kaly | Irish, Old english | |
| Calhoun | Hero warrior of the forest. | Calhoon, Colhoun, Colquhoun, Kalhoon, Kalhoun | Irish | |
| Callaghan | Conflicted | Calaghan, Calahan, Callahan, Kalaghan, Kallaghan, Kallahan | Irish | |
| Callum | Dove, peace; follower of st columbious. gentle. | Calam, Calem, Calim, Callam, Callem, Callim, Callym, Calum, Colm, Colum, Kallum, Kalum | Irish, Gaelic, Scottish | |
| Camden | Dweller in the winding, windy valley | Camdan, Camdin, Camdon, Camdyen, Camdyn, Kamdan, Kamden, Kamdin, Kamdon, Kamdyn | Irish | |
| Canice | Handsome, attractive one. a form of coinneach. | Canyce, Kanice, Kanyce | Irish, Celtic | |
| Caoimh n | Handsome. a form of kevin. | Irish | ||
| Caolan | Slender place. | Irish | ||
| Car | From the castle. | Carr, Kar, Karr | Irish | |
| Carlin | Little champion; strong, courageous one frm the pool. | Carlan, Carlen, Carley, Carli, Carlie, Carling, Carlino, Carlon, Carly | Irish, Old english | |
| Carmichael | Friend of st michael; from the castle of st michael. | Irish, Scottish | ||
| Carney | Victorious warrior. | Carnee, Carney, Carnie, Karnee, Karney, Karni, Karnie, Karny | Irish | |
| Casey | Brave, aggressive warrior. | Casee, Casi, Casie, Cassee, Cassey, Cassi, Cassie, Caswell, Casy, Cayse, Caysewell, Cazzee, Cazzey, Cazzi, Cazzie, Cazzy, K, Kasee, Kasey, Kasi, Kasie, Kassee, Kassey, Kassi, Kassie, Kassy, Kasy | Irish | |
| Cashel | Fortified, strengthened castle wall. | Cashell | Irish | |
| Cass | Clever, curly-haired one. a short form of names starting with "cas". | Irish | ||
| Cassidy | Clever, curly-haired. | Casius, Caskey, Cassian, Cassidee, Cassidey, Cassidi, Cassidie, Cassion (italian), Kasius, Kaskey, Kassidee, Kassidey, Kassidi, Kassidie, Kassidy, Kassion | Irish | |
| Cassie | Prophet; clever, curly-haired one. a short form of names starting with "cas". | Casi, Cassi, Cassy | Irish, Greek | |
| Catalin | Magical wizard. a masculine form of caitlin, pure pool. | Caitalin | Irish | |
| Cathmor | Great warrior; from the pure moor. a masculine form of cathy, purity. | Cathmoor, Cathmoore, Cathmore | Irish, Gaelic, Old english | |
| Cavan | Handsome | Irish | ||
| Cavanaugh | Handsome | Cavan, Caven, Cavin, Cavon, Kavanaugh | Irish | |
| Cearbhall | Victorious warrior. a form of carroll. | Irish | ||
| Cian | Ancient one, long lived. | Celin, Cianan, Cyan, Kian, Kyan | Irish, Gaelic | |
| Ciar n | Small, dark one. | Kieran | Irish, Gaelic | |
| Cillian | Of the church. | Keelan, Killian | Irish, Gaelic | |
| Clancy | Belonging to the family; red-haired | Clance, Clancee, Clancey, Clancie, Clanse, Clansee, Clansey, Clansi, Clansie, Clansy | Irish, Gaelic | |
| Cleary | Scholar, knowledge. | Clearey, Clearie | Irish, Gaelic | |
| Clyde | High, rocky area of land; heard from afar. | Clydel, Clydell | Irish, Gaelic, Scottish | |
| Cody | Cushion, pillow; helpful. | Codee, Codey, Codi, Codie | Irish, Gaelic, Old english | |
| Coile n | Pup, cub. | Coilin, Colin | Irish, Gaelic | |
| Coinneach | Handsome, attractive one. a form of coinneach. | Canice | Irish, Gaelic | |
| Colin | Young child; peaceful dove; from the coal pool. | Cailean, Colan, Cole, Colen, Collan, Collen, Collie, Collin, Collino, Collins, Collyn, Colon, Colyn, Greek), Nicolin (french | Irish, Gaelic, Old english | |
| Collins | Colin's son, son from the coal pool; holly. | Colin, Colins, Collin, Collyn, Collyns, Colyn, Colyns | Irish, Greek | |
| Colm | Dove | Irish, Gaelic | ||
| Colman | Little dove. | Irish, Gaelic | ||
| Coman | Noble; bent | Camen, Comin, Comyn | Irish, Arabic | |
| Comyn | Crooked | Comin | Irish | |
| Conal | High, mighty. | Conel, Conell, Conelle, Connal, Connall, Connel, Connell, Connelle, O'conal, O'conall, O'conel, O'connel, O'connelle | Irish | |
| Conchobhar | Lover of hounds. | Irish, Gaelic | ||
| Conlan | Hero | Conland, Conlin, Conlon, Conlyn | Irish | |
| Conn | High | Irish, Gaelic | ||
| Conroy | Wisdom; persistent. | Irish, Celtic | ||
| Conway | Holy water; hound from the plains. | Irish, Welsh | ||
| Corcoran | Ruddy complexion. | Irish | ||
| Corey | From the hollow, head protection, helmet used for battle. | Cori, Corie, Corki, Corkie, Corky, Corree, Correy, Corri, Corrick, Corrie, Corry, Cory, Koree, Korey, Kori, Korie, Korree, Korrey, Korri, Korrie, Korry, Kory | Irish | |
| Cormac | Raven, son of the chariot racer; tree trunk. | Core, Corey, Cormach, Cormick, Maccormack | Irish, Gaelic, Greek | |
| Cormich | Charioteer. | Irish | ||
| Corrigan | Spear carrier. | Corigan, Corogan, Corrigon, Corrigun, Corrogan, Corrogun, Korrigan, Korrigun | Irish | |
| Corrin | Spear user. | Coren, Corin, Corren, Corryn, Coryn, Koran, Koren, Korin, Koron, Koryn | Irish | |
| Corydan | Head protection, helmut; from the hollow, god is my judge. a combination of cory and dan; lark. | Coridan, Coriden, Coridon, Coridyn, Coryden, Corydin, Corydon (greek), Corydyn | Irish, Greek, Hebrew | |
| Cosgrove | From the cow grove. | Irish | ||
| Cowan | From the cow land; hooded robe; hillside hollow. | Cowen, Cowin, Cowyn | Irish, Australian aboriginal, Middle english | |
| Coyle | Leader in the battle. | Coil, Coile | Irish | |
| Cr n n | Dark brown-haired or complexioned; companion, friend. | Cronan (greek) | Irish, Greek | |
| Cr ost ir | Christ bearer. a form of christopher. | Irish, Gaelic | ||
| Crevan | Fox | Creven, Crevin, Crevon, Crevyn | Irish | |
| Crofton | From the small pasture town with cottages. | Irish | ||
| Cullen | Colony; handsome. | Cullan, Culley, Cullin | Irish, Old french | |
| Culley | Forest | Culeah, Culee, Culey, Culie, Cullea, Culleah, Cullee, Culleigh, Cullie, Cully | Irish, Gaelic | |
| Cunningham | Village with the milk pails. | Cunning | Irish | |
| Curran | Dagger, hero. | Curren, Currin, Curron | Irish | |
| Cuyler | Chapel | Cuiler | Irish | |
| Dacey | Southerner | Dacee, Daci, Dacie, Dacy, Dacycey, Daice, Daicee, Daicey, Daici, Daicie, Daicy, Dayce, Daycee, Dayci, Daycie, Daycy | Irish, Gaelic | |
| Daegan | Black-haired. | Daegen, Daegin, Daegon, Daegyn, Dagan, Daigan, Daigen, Daigin, Daigyn, Daygan, Daygen, Daygin, Daygon, Daygyn | Irish, Gaelic | |
| Dagda | Good spirit. | Dagdah | Irish, Gaelic | |
| Dahy | Swift moving. | Daiy | Irish | |
| Dallan | Unseeing. | Daelan, Daelen, Daelin, Dailan, Dailen, Dailin, Dalain, Dalan, Dallen, Dallin, Dallyn, Dalyn | Irish | |
| Dallas | From the waterfall field or the ravine field; wise. geographical - city in texas. | Dalaz, Dalishia, Dalishya, Dalisia, Dalissia, Dalissiah, Dallaz, Dallys, Dalyce, Dalys, Dalyss, Dalyssa, Dalysse | Irish, Scottish | |
| Dallen | Unseeing | Daelan, Daelen, Daelin, Dailan, Dailen, Dailin, Dalain, Dalan, Dallen, Dallin, Dallyn, Dalyn | Irish | |
| Daly | Counselor | Irish, Gaelic | ||
| Dana | Fire; bright day. from denmark | Daha, Dahanah, Danah, Danne | Irish, Old english | |
| Darby | Free man, freedom; from the deer estate. | Darbe, Darbee, Darbey, Darbi, Darbie, Derbe, Derbee, Derbey, Derbi, Derbie, Derby | Irish, Scandinavian | |
| Darcy | Dark-haired; fortress. | D'arcy, Darce, Darcee, Darcey, Darci, Darcie, Darsey, Darsi, Darsie, Darsy | Irish, French | |
| Darence | Great. a form of darren, gift; rocky hill. | Darance, Darrance, Darrence | Irish, English | |
| Darren | Gift | Daran, Daren, Darian, Darien, Darin, Darion, Daron (irish), Darran, Darrian, Darrick (german), Darrien, Darrin, Darrion (irish), Darron darrun, Darryn, Darun, Daryn, Der, Deran | Irish, Australian, Gaelic, New zealand | |
| Darrie | Red-haired one. | Dari, Darie, Darry, Dary | Irish | |
| Declan | Praying | Daclan, Deklyn, Diclan, Dyclan | Irish | |
| Delaney | Of the elder-tree grove. | Delain, Delainey, Delaini, Delan, Delanie, Delano (french), Delany | Irish, French | |
| Dempsey | Proud | Dempsi, Dempsie, Dempsy | Irish | |
| Dermot | Freedom; free of envy | Dermont, Dermott, Diarmid, Diarmit | Irish | |
| Derry | Red-haired | Deri, Derie, Derri, Derrie, Dery | Irish | |
| Desmond | From south munster. | Desmund, Dezmond, Dezmund | Irish, Gaelic | |
| Devin | Poet; perfection; from devonshire, people of the deep valley. | Deavin, Deavyn, Devyn | Irish, Latin, Old english | |
| Devine | Divine; ox. | Devyn, Devyne | Irish, Latin | |
| Devlin | Fierce | Irish | ||
| Devon | Poet; perfection; from devonshire, people of the deep valley. | Deavan, Deaven, Deavon, Devan, Deven, Devon, Devun | Irish, Latin, Old english | |
| Dillon | Like a lion; faithful. | Dilan, Dilen, Dillan, Dillen, Dillyn, Dilon, Dilyn, Dylan, Dylelen, Dylen, Dyllan, Dyllin, Dyllon, Dyllyn, Dylyn | Irish, French | |
| Dinsmore | From the fortress hill. | Dinmoar, Dinmoor, Dinmoore, Dinmor, Dinmore, Dinsmoor, Dinsmoore, Dynmoar, Dynmoor, Dynmoore, Dynmor, Dynmore | Irish | |
| Doane | Poem; from down the hill; graceful deer. | Doan | Irish, English, Hebrew, Old english | |
| Doherty | Harm | Docherty, Dougherty, Douherty | Irish | |
| Dolan | Dark, bold. | Dollan | Irish | |
| Donegal | Fort of foreigners. | Donigal, Donygal | Irish | |
| Donnell | Brave, dark-haired one. | Doneal, Donel, Donell, Donelle, Donelly, Doniel, Donielle, Donnel, Donnelle, Donniel, Donnyl, Donyl | Irish | |
| Donny | Proud ruler. the short form of names starting with 'don'. | Donee, Doney, Doni, Donie, Donnee, Donney, Donni, Donnie, Dony | Irish, Scottish | |
| Dooley | Dark hero. | Doolea, Dooleah, Dooleigh, Dooli, Doolie, Dooly | Irish | |
| Doran | Stranger; gift. | Doren, Dorin, Doron, Dorran, Dorren, Dorrin, Dorron, Dorryn, Doryn | Irish, Greek | |
| Doug | Dark stranger from the dark-blue stream. a short form of douglas. | Douge, Dougee, Dougey, Dougi, Dougie, Dougy, Dug, Dugee, Dugey, Dugi, Dugie, Dugy | Irish, Gaelic | |
| Dougal | Dark stranger from the dark-blue stream. a short form of douglas. | Doogal, Doogall, Dougall, Dougie, Douglass, Dugald, Duglass | Irish, Gaelic | |
| Douglas | Dark stranger from the dark-blue stream. | Douglass, Duglass | Irish, Gaelic | |
| Dow | Black-haired. | Irish, Gaelic | ||
| Doyle | Dark stranger. | Doial, Doiale, Doiall, Doil, Doile, Dotal, Dotel, Doyal doyel, Doyele, Doyell, Doyelle | Irish | |
| Driscoll | One who interprets. | Driscol, Driscole, Dryscol, Dryscoll, Dryscolle | Irish | |
| Duane | Dark one, swarthy | Dewain, Dewan, Dewane, Dewayne, Duane, Dwain, Dwaine, Dwayn, Dwayne (gaelic) | Irish, Gaelic | |
| Dugan | Dark-haired; swarthy. | Doogan, Doogen, Dougan, Dougen, Douggan, Douggen, Dugen | Irish, Gaelic | |
| Duke | Leader; a sort form of marmaduke, follower of saint maedoc. | Duk | Irish, Gaelic, Latin | |
| Dwayne | Dark one. | Dewain, Dewan, Dewane, Dewayne, Duane, Dwain, Dwaine, Dwayn, Dwayne (gaelic) | Irish | |
| Ea | Brilliant, famous. | Eah | Irish, German | |
| Eachan | Works with the horses, horseman or horse lord. | Eachen, Eachin, Eachon, Eachyn, Egan, Egen, Egin, Egon, Egyn | Irish, Gaelic | |
| Eamon | Wealthy; protector | Eaman, Eamen, Eamin, Eamman, Eammen, Eammin, Eammon, Eammun, Eamun, Eamyn, Edmund, Eiman, Eimen, Eimin, Eimon, Eimyn, Emmyn, Etman, Eymen, Eymin, Eymon, Eymyn | Irish, English | |
| Earl | Pledge; promise; nobleman | Airle, Earld, Earle, Earli, Earlie, Earlson, Early, Eorl, Erral, Errel, Erril, Errol, Erryl, Eryl | Irish, English | |
| Edin | God is gracious. a form of john. | Eadan, Eaden, Eadin, Eadon, Eadyn, Edan, Eden, Edon, Edun, Edyn | Irish, Scottish | |
| Egan | Fiery | Egann, Egen, Egin, Egon, Egyn | Irish | |
| Eion | God is gracious. a form of ian. | Ean, Eann, Eon, Eyon, Ian | Irish, English, Scottish | |
| Enda | Bird | Endah | Irish | |
| Eneas | Praised. a form of aeneas | Irish, Greek | ||
| Ennis | Mine, ninth-born child; island; only child. | Enis, Ennys, Enys | Irish, Celtic, Greek | |
| Enright | The attacker's son. | Enrite | Irish | |
| Erin | Peace; from ireland. | Eran, Eren, Erine, Erinn, Erino, Eron, Eryn, Erynn | Irish, Celtic | |
| Ernan | Experienced | Ernen, Ernin, Ernon, Ernyn | Irish | |
| Fagan | Little fire. | Faegan, Faegen, Faegin, Faegon, Faegyn, Fagen, Fagin, Fagon, Fagyn, Faigan, Faigen, Faigin, Faigon, Faigyn, Faygan, Faygen, Faygin, Faygon, Faygyn | Irish, Gaelic | |
| Fallon | Of a ruling family, descended from a ruling family. | Faline, Fallan, Fallen, Fallyn | Irish, Gaelic | |
| Faolan | Wolf | Irish | ||
| Farrell | Hero | Faral, Farel, Faril, Farol, Farral, Farrel, Farryl, Faryl, Ferrel, Ferrell, Ferril, Ferryl | Irish, Celtic | |
| Fay | Raven | Irish, Gaelic | ||
| Fearghal | Man of valour, man of strength. | Farrell, Ferdinand, Fergal | Irish, Gaelic | |
| Fedlim | Good | Fedlym | Irish | |
| Fehin | Little raven. | Fechin | Irish | |
| Feidhelm | Beauty, ever good. | Irish | ||
| Felimy | Forever good. | Felymy | Irish | |
| Ferdia | Man of god. | Ferdiah | Irish | |
| Fergal | Brave, courageous, valorous. | Irish | ||
| Fergus | Manly, strong warrior, virile; choice | Fearghas, Fearghus, Feargus, Ferghas, Ferghus, Ferguson, Firguson, Furgus, Furgusen, Furguson | Irish, Celtic | |
| Ferguson | Son of fergus. | Irish, Celtic | ||
| Fermac | Brightness | Fearmac, Fermack, Fermak | Irish | |
| Ferrell | Hero | Ferel, Ferell, Ferrel | Irish | |
| Ferris | Iron worker. iron, rock. a form of peter.; choice | Farice, Farrice, Farris, Feris, Ferrice, Ferrise, Ferryce, Ferryse, Ferryss | Irish, Gaelic | |
| Finlay | Blond-haired. | Findlay (celtic), Findlea, Findleah, Findlee, Findleigh, Findley, Finlea, Finleah, Finlee, Finleigh, Finnlay, Finnlea, Finnleah, Finnlee, Finnleigh, Finnley, Fyndl, Fyndlay, Fyndlea, Fyndleah, Fyndlee | Irish | |
| Finn | Blond-haired, fair complexioned; from finland. | Eifion, Fin, Finan, Finbar, Finbarr, Finian (celtic), Finnegan, Finnian, Fion, Fyn, Fynn | Irish, Gaelic, Old german | |
| Finnegan | Light-complexioned. | Finegan, Fineghan, Finneghan, Fynbegan, Fyneghan, Fynnegan, Fynneghan | Irish | |
| Fintan | From finland, from finn's town, fair-haired. | Finten, Fintin, Finton, Fintyn, Fyntan, Fynten, Fyntin, Fynton, Fyntyn | Irish | |
| Fionn | Fair-headed, fair, white. a central character in irish folklore. | Fin, Finn | Irish | |
| Flynn | Son of the red-haired one. son of finn. | Flin, Flinn, Flyn | Irish, Gaelic | |
| Forbes | Wealthy owner of fields; headstrong. | Forbs | Irish, Gaelic | |
| Gael | Gaelic | Gaelic) | Irish | |
| Gair | Small, short one. | Gaer, Gayr, Gearr, Geir, Geirr | Irish | |
| Galbraith | A scottish person living in ireland. | Galbrayth | Irish | |
| Galloway | From the highway near the gallows. | Gallway, Galway | Irish | |
| Galvin | Bright, sparrow. | Galvan, Galven, Galvon, Galvyn | Irish | |
| Gannon | Fair complexioned, light skinned. | Ganan, Ganen, Ganin, Gannan, Gannen, Gannin, Gannon, Gannyn, Ganon, Ganyn | Irish | |
| Garbhan | Small, tough child. | Garban | Irish | |
| Garrad | Brave spear thrower. | Gared, Garrard, Garred, Garrod, Garryd, Gerred, Jared | Irish, English | |
| Garvey | Peace | Garvee, Garvi, Garvy | Irish | |
| Gaynor | The fair-skinned one's son. | Gaenor, Gainor | Irish | |
| Gently | Snow. | Genti, Gentie | Irish, English | |
| Ghilchrist | God's servant. | Gilchrist | Irish | |
| Gilby | From the estate of the hostage; blond-haired. | Gilbee, Gilbey, Gillbee, Gillbey, Gillby | Irish, Scandinavian | |
| Gildea | God's servant. | Gildee, Gildey, Gildy | Irish | |
| Gillespie | Son of the bishop's servant. | Gillis | Irish | |
| Gilmore | Devoted one from the moor. | Gillmoor, Gillmoore, Gillmor, Gillmore, Gilmoore, Gilmor, Gilmour | Irish | |
| Gilroy | Devoted to the king. | Gilderoi, Gilderoy, Gildray, Gildroy, Gillroy | Irish | |
| Girvin | Little, rough. | Irish | ||
| Gorman | Little one with the blue eyes. | Gormen | Irish | |
| Grady | Noble, illustrious. | Gradee, Gradey, Gradi, Gradie, Graidee, Graidey, Graidi, Graidie, Graidy, Graydee, Graydey, Graydi, Graydie, Graydy | Irish | |
| Gribbon | Robin's son, son of the robin bird keeper. | Irish, German | ||
| Guire | Beige colour. | Macguire, Macguyre | Irish | |
| Guthre | From the windy sea. | Guthree, Guthrey, Guthri, Guthrie, Guthry | Irish | |
| Hagan | Ruler of the home. | Hagen, Hagin, Hagon, Hagyn | Irish | |
| Hagen | Little, young. | Hagan, Hagin, Hagon, Hagun, Hagyn | Irish, Gaelic | |
| Harkin | Dark red colour; red-haired. | Harkan, Harken, Harkon, Harkyn | Irish | |
| Hayes | From the place with hedges. | Hays | Irish, Old english | |
| Hewney | Green | Hewnee, Hewni, Hewniw, Hewny | Irish | |
| Hogan | Young | Hogen, Hogin, Hogun, Hogyn | Irish, Gaelic | |
| Hoyt | Mind, spirit. | Hoyts, Hoytz | Irish | |
| Jarren | To rejoice, to sing. | Jaren, Jarin, Jaron (israeli), Jarren, Jarrin | Irish, English | |
| Jashawn | God is gracious. a form of shawn. | Jasean, Jashaun | Irish, Hebrew | |
| Jimeoin | Replacer who is born to nobility. a combination of jim and owen. | Jimeoine, Jimowen, Jimowyn, Jymoin, Jymoine, Jymowen, Jymowyn | Irish, Australian, Hebrew | |
| Kacey | Brave | K.c., Kace, Kacee, Kacy, Kaecee, Kaecey, Kaeci, Kaecie, Kaecy, Kaesee, Kaesi, Kaesie, Kaesy, Kaicee, Kaicey, Kaici, Kaicie, Kaicy, Kase, Kasee, Kasey, Kasi, Kasie, Kasym kc | Irish | |
| Kailen | Might warrior. | Kaelan, Kaelen, Kaelin, Kaellan, Kaellin, Kaellon, Kaellyn, Kaelon, Kaelyn, Kailan, Kallan, Kallen, Kallin, Kallon, Kallyn, Kaylan, Kaylin, Kayllan, Kayllen, Kayllon, Kayllyn, Kaylon, Laellen, Layllin | Irish | |
| Kaine | Beautiful; tribute; eastern sky; golden. | Caen, Cain, Caine, Cane, Cayn, Cayne, Kaen, Kahan, Kain, Kainan, Kaine, Kainen, Kane, Kaney, Kayn, Kayne | Irish, Hawaiian, Japanese, Welsh | |
| Kalan | Warrior. a form of kailen. | Kaelan, Kaelen, Kaelin, Kaellan, Kaellen, Kaellin, Kaellon, Kaellyn, Kaelon, Kaelyn, Kailan, Kallan, Kallen, Kallin, Kallon, Kallyn, Kaylan, Kaylin, Kayllan, Kayllen, Kayllin, Kayllon, Kayllyn, Kaylon | Irish | |
| Kallen | Mighty warrior. | Kalan, Kalen, Kalin, Kallan, Kallin, Kallon, Kallun, Kallyn, Kalon, Kalun, Kalyn | Irish | |
| Kane | Honour, tribute; beautiful; golden; eastern sky. | Caen, Cain, Caine, Cane, Cayn, Cayne, Kaen, Kahan, Kain, Kainan, Kaine, Kainen, Kaney, Kayn, Kayne | Irish, Gaelic, Hawaiian, Japanese, Welsh | |
| Karney | Winner | Karnee, Karni, Karnie, Karny | Irish | |
| Kasey | Brave | K.c., Kace, Kacee, Kacy, Kaecee, Kaecey, Kaeci, Kaecie, Kaecy, Kaesee, Kaesi, Kaesie, Kaesy, Kaicee, Kaicey, Kaici, Kaicie, Kaicy, Kase, Kasee, Kasey, Kasi, Kasie, Kasym kc | Irish | |
| Kassidy | Clever, curly-haired. | Cassidy, Kasidey, Kassadee, Kassadey, Kassadi, Kassadie, Kassady, Kassedy, Kassidee, Kassidi, Kassidie, Kassydee, Kassydey, Kassydi, Kassydie, Kassydy | Irish | |
| Kavan | Handsome | Cavan, Caven, Cavin, Cavon, Cavun, Cavyn, Kavanagh, Kaven, Kavenaugh, Kavin, Kavon, Kavun, Kavyn | Irish | |
| Kavanagh | Kevin's follower, follower of the handsome one. | Cavanagh, Kavenagh | Irish | |
| Ke | Handsome one from birth, gentle. a short form of kevin. | Kei, Keigh, Key | Irish | |
| Kearn | Dark-haired | Kearne, Kern, Kerne, Kerrn, Kerrne | Irish | |
| Keefe | Noble, gentle; enjoyment | Keef, Keefer, Keeff, Keif, Keifer, Keiff, Keiffer, Keith, Keithe, Keyf, Keyff, Keyffe, Keyth | Irish | |
| Keegan | Son of egan. small; fiery | Kaegan, Keagan, Keagen, Keagin, Keagon, Keegan, Keegen, Keegin, Keegon, Kegan, Kegen, Keghan, Keghen, Kegun, Kegyn, Keigan, Keigen, Keigin, Keigon, Keigun, Keigyn, Keyg, Keygan, Keygen, Keygin, Keygon | Irish, Gaelic | |
| Keelan | Slender, islander. | Kealan, Kealen, Kealin, Kealon, Kealyn, Keelen, Keelin, Keelon, Keelun, Keelyn, Keilan, Keilen, Keilin, Keilon, Keilyn, Keylan, Keylen, Keylin, Keylon, Keylyn | Irish, Gaelic | |
| Keeley | Handsome meadow. | Kealee, Kealeigh, Kealen, Keali, Kealie, Kealy, Keelea, Keeleah, Keelee, Keeleigh, Keelen, Keeli, Keelie, Keely, Keilea, Keileah, Keilee, Keileigh, Keiley, Keili, Keilie, Keily, Kelea, Keleah, Keylea | Irish, English, Gaelic | |
| Keevin | Beautiful and fair. | Caoimhinn | Irish | |
| Keilan | Slender one, small and slim, fair. | Kealan, Keallan, Keallin, Keelan, Keilan, Keillan, Kelan, Kylan | Irish, Gaelic | |
| Kellagh | War | Irish | ||
| Kellen | Mighty warrior. | Kaelan, Kaelen, Kaelin, Kaelon, Kaelyn, Kailan, Kalan, Kalen, Kalin, Kallan, Kallen, Kaylen, Keelan, Keilan, Keillan, Keldan, Kellan, Kelle, Kellin, Kelynn | Irish | |
| Keller | Little companion warrior. | Keler | Irish, Gaelic | |
| Kelly | Warrior, dweller from the meadow near the woods. | K, Kealea, Kealeah, Kealee, Kealeigh, Keali, Kealie, Keallea, Kealleah, Keallee, Kealleigh, Kealley, Kealli, Keallie, Keally, Kealy, Keelea, Keeleah, Keelee, Keeleigh, Keelli, Keellie, Keelly, Keylley | Irish, Gaelic | |
| Kelvin | Friend of ships, from the narrow river. | Calvan, Calve, Calvin, Calvon, Celvan, Celven, Celvin, Celvon, Kalvan, Kalven, Kalvon, Kalvyn, Kelvan, Kelven, Kelvon, Kelvyn | Irish, Gaelic | |
| Kendrick | Son of ken, son of the relative, clear, bright water. | Kendric, Kendrick, Kendricks, Kendrik, Kendriz, Kendryc, Kendryck, Kendryk, Kenric, Kenrick, Kenrik, Keondric, Keondrick, Keondrik, Keondryc, Keondryck, Keondryk | Irish | |
| Kennedy | Royal ruler; helmeted chief. | Kenman, Kennadie, Kennady, Kennard, Kennedey, Kennedi, Kennedie, Kent, Kenton, Kenyon | Irish, Old english | |
| Kenneth | Handsome, kind; royal oath. | Canice, Cennydd, Cenydd, Ken, Kene, Kenley, Kenly, Kennan, Kennen, Kennet, Kennin, Kennon, Kenny, Kennyn, Kennyth, Kent, Kenton, Kenward, Kenworth, Kenyth | Irish, English, Gaelic | |
| Kenyon | Blond-haired. | Kenyan, Kenyen, Kenyin | Irish | |
| Keon | Young warrior. a form of ewan and evan. well born. | Keaon, Keeon, Keion, Keionne, Keondre, Keone, Keontae, Keontrye, Keony, Keyon, Kian, Kion, Kyon | Irish | |
| Kermit | Freedom | Kermitt, Kermyt, Kermytt | Irish | |
| Kerwin | Dark-haired friend. | Kerwain, Kerwaine, Kerwan, Kerwane, Kerwon, Kerwyn, Kerwynn, Kerwynne | Irish | |
| Kev | A short form of kevin, handsome, gentle. | Irish, Gaelic | ||
| Kevin | Handsome, gentle. | Kevan, Keven, Kevern, Keverne, Kevin, Kevinah, Kevine, Kevirn, Kevirne, Kevon, Kevyn, Kevyrn, Kevyrne | Irish, Gaelic | |
| Key | Son of the fiery one; son of the key holder. | Kea, Kei, Key, Keye, Keynan, Keynon | Irish, English | |
| Kian | Ancient. a form of cian. | Kiani, Kianni | Irish | |
| Kiani | Ancient. a form of kian. | Kian, Kianni | Irish | |
| Kieran | Small with dark hair or complexion. | Ceiran, Ceiren, Ceirin ceiron, Ciaran, Ciaren, Ciarin, Ciaron, Keeran, Keeren, Keerin, Keeron, Keiran, Keiren, Keirin, Keiron, Kielan, Kyran, Kyren, Kyrin, Kyron, Kyryn | Irish | |
| Kinnard | From the king's high hill. | Kinard, Kynard, Kynnard | Irish | |
| Knox | From the hill. | Knol, Knoll, Knoxx, Nox, Noxx | Irish, Gaelic | |
| Kory | From the hollow, head protection, helmet used for battle. | Coree, Corey, Cori, Corie, Cory, Koree, Korey, Kori, Korie | Irish | |
| Kyan | Little king; a form of ryan | Kian | Irish, African american | |
| Kyeden | Lengthened form of "ky / kye" | Kieden, Kyden, Kyeden | Irish, Gaelic | |
| Kyle | From the strait. | Kiel, Kilan, Kile, Kilen, Kiley, Kyel, Kyele, Kylan, Kylar, Kylen, Kyler (english), Kylon | Irish, Gaelic | |
| Kylon | From the strait. a form of kyle; ; | Kilon, Kilonu | Irish, Gaelic, Greek, Hawaiian | |
| Labhras | Laurel crowned, victory. | Irish | ||
| Larkin | Rough, fierce. | Larkan, Larken, Larklin, Larklyn, Larkyn | Irish | |
| Lashawn | God is gracious. a form of shawn. | Lasean, Lashajaun, Lashaun, Lashon, Lashonne | Irish, American | |
| Laughlin | Servant | Lauchlin, Laughlyn, Leachlain, Leachlainn | Irish | |
| Leshawn | God is gracious. a form of shawn. | Lesean, Leshajaun, Leshaun, Leshon, Leshonne | Irish, American | |
| Liam | Helmet of resolution; wilful. a short form of william | Lyam | Irish, Teutonic | |
| Lian | Protector. | Liam, Lyam, Lyan | Irish | |
| Loch | From the land of the lakes. a short form of lachlan. | Irish, Scottish | ||
| Lochie | From the land of the lakes. a short form of lachlan. | Lachi, Lachie, Lachy, Lochey, Lochi, Lochy | Irish, Scottish | |
| Loman | Enlightened; brave; sensitive. | Lomen | Irish, Celtic, Slavic | |
| Luc | Bringer of light. a short form of names beginning with "luc" or "luk". | Luke | Irish, Danish, Dutch, German | |
| Lucas | Bringer of light; from luciana. a masculine form of lucy. | Loukas, Luca (italian), Lucah, Lucassie, Lucca (italian), Luciano (italian), Lucio (italian), Luckas, Lucus, Lucys, Lukas, Lukasz, Lukus, Lukys | Irish, Danish, Dutch, German, Greek | |
| Lunn | Warlike | Lon, Lonn, Lonni, Lonnie, Lonny, Lony, Lunni, Lunnie, Lunny, Luny | Irish | |
| Lynch | Mariner | Linch | Irish | |
| Macardle | Bravery's son | Irish | ||
| Macarthur | Arthur's son, son of the noble strength.; son of the bear. | Macarthur, Mackarthur, Makarthur, Mcarthur | Irish, Scottish, Welsh | |
| Maccoy | Coy's son, son of the shy, sweet and modest one. | Maccoi, Maccoy, Mackoi, Mackoy, Makcoi, Makcoy, Mccoi, Mccoy | Irish | |
| Maccrea | Grace's son, son of the graceful, blessed one. | Maccrae, Maccrai, Maccray, Maccrea, Mackrea, Macrae, Makcrea, Mccrea | Irish | |
| Mackenzie | Kenzie's son. son of the wise, handsome leader | Mackenzee, Mackenzey, Mackenzi, Mackenzy, Makenzee, Makenzey, Makenzi, Makenzie, Makenzy, Mckenzee, Mckenzey, Mckenzi, Mckenzie, Mckenzy | Irish | |
| Mackinley | Kinle's son, son of the skilful leader; son of hte relative from the meadow. | Ma, Mackinlea, Mackinleah, Mackinlee, Mackinleigh, Mackinli, Mackinnly, Mackynlea, Mackynleah, Mackynlee, Mackynleigh, Mackynlie, Mackynly, Makinleah, Makinlee, Makinleigh, Makinley, Makinlie, Makinly | Irish, Old english | |
| Macmahon | Mahon's son, son of the one who is storng like a bear. | Mackmanon, Macmahon, Mcmahon | Irish | |
| Macmurray | Murray's son, son of the sailor. | Mackmurray, Macmurry, Mcmurray, Mcmurry | Irish | |
| Magee | Hugh's son, son of the intelligent one; heart, mind. | Macgee, Macghee, Mcgee | Irish, Teutonic | |
| Maguire | Guire's son, son of the beige one. | Macguire, Mcguire | Irish | |
| Mahon | Strong like a bear. | Mahoney | Irish | |
| Malcom | Follower of saint columba. | Malcolm, Maolcolm | Irish, Gaelic, Scottish | |
| Malone | St john's servant. | Malon | Irish | |
| Maloney | Devoted to worship on sundays. | Malonee, Maloni, Malonie, Malony | Irish | |
| Malvyn | Armoured chief or ruler. | Malvan, Malven, Malvin, Malvon, Melvan, Melvin, Melvon, Melvyn | Irish, Gaelic | |
| Mannix | Monk | Mainchin, Mannox, Mannyx, Manox, Manyx | Irish | |
| Marmaduke | Servant of madoc, lucky; noble, mighty. | Duke, Marmaduc, Marmaduk, Marmeduke, Melmidoc | Irish, Old english | |
| Marmion | Tiny; sea bright. | Marmien, Marmyon | Irish, Old french | |
| Mayo | From the yew-tree plain; relation. | Maio | Irish | |
| Mcclane | Son of clane, son of the inclined one. also used as a girls name. | Irish | ||
| Mel | Friend, mill chief. the short form for names starting with "mel". | Mell | Irish, English | |
| Melvin | Mel's friend from the mill; sword friend. | Melvan, Melven, Melvern, Melverne, Melvine, Melvirn, Melvirne, Melvyn, Melvyrn, Melvyrne | Irish, Gaelic, Old english | |
| Merv | Famous friend. the short form of mervin. | Merve | Irish, English | |
| Molan | Servant of the storm. | Irish | ||
| Monahan | Monk | Monaghan, Monoghan | Irish | |
| Monroe | From the red swampe. | Monro, Monrow, Munro, Munroe, Munrow | Irish | |
| Mortimer | Still waters, dead sea; sea director | Mortymer | Irish, Old french | |
| Moss | From the area with moss | Mos | Irish | |
| Mundy | From the reamonn in ireland. | Mund, Munde, Mundee, Mundey, Mundi, Mundie, Mundo (spanish) | Irish | |
| Mungo | Lovable | Irish | ||
| Naal | Birth | Nal | Irish | |
| Neal | A champion. see also neil | Neale, Neall, Nealle, Nealon, Nealy, Nealye, Neel, Neele, Neell, Neelle, Neil, Neile, Neill, Neille (scandinavian), Nel, Nels (scandinavian), Nial, Niale, Niall (scottish), Nialle, Niel, Niele, Niell | Irish | |
| Neil | Champion | Neal (irish), Neale, Neall, Nealle, Nealon, Nealy, Nealye, Neel, Neele, Neell, Neelle, Neile, Neill, Neille (scandinavian), Nel, Nels (scandinavian), Nial, Niale, Niall (scottish), Nialle, Niel, Niele | Irish, Gaelic | |
| Nerville | From the sea village. | Nervil, Nervile, Nervill, Nervyl, Nervyle, Nervyll, Nervylle | Irish, French | |
| Nevin | Little saint; nephew. | Nefan, Nefen, Nefin, Nevan, Neven, Nevins, Nevon, Nevyn, Nivan, Niven (english), Nivon, Nivyn, Nyvan, Nyven, Nyvin, Nyvon, Nyvyn | Irish, Gaelic, Old english | |
| Niven | Little saint. | Irish | ||
| Nolan | Famous, descended from nobility. | Noland, Nolen, Nolin, Nolon, Nolyn | Irish, Gaelic | |
| O’connor | High will, desire. | O'conor | Irish, Celtic | |
| O’neil | Neil's son, son of the champion. | O'neal, O'neale, O'neel, O'neele, O'neile, O'nel, O'nele, O'niel, O'nil'o'nile, O'nyel, O'nyele, O'nyl, O'nyle | Irish | |
| O’shea | Shea's son, son of the majestic one. | O'shay, O'shaye, Osean, Oshae, Oshane, Oshaun, Oshawn | Irish | |
| Odhran | Green | Irish | ||
| Odran | Pale green colour. | Odhran, Odran, Odren, Odrin, Odron, Odryn | Irish | |
| Oghe | Horse worker. | Irish | ||
| Oistin | Little but majestic. a form of austin. | Oistan, Oysin, Oysyn | Irish | |
| Oran | Green | Oren, Orin, Oron, Orran, Orren, Orrin, Orron, Orryn, Oryn | Irish | |
| Ossian | Fawn | Ossyan, Osyan | Irish | |
| Owney | Elder | Onee, Oney, Oni, Onie, Ony, Ownee, Owni, Ownie, Owny | Irish | |
| Paddy | Noble. the irish form of patrick. | Paddee, Paddey, Paddi, Paddie, Padi, Padie, Padriac, Pady, Patrick | Irish | |
| Padraic | Noble. a form of patrick. | Padraig | Irish | |
| Palaina | Strong honour. | Palainah | Irish, Hawaiian | |
| Patterson | Pat's son, son of the noble one. | Paterson, Patteson | Irish | |
| Peadar | Stone. a form of peter. | Paeador, Peadair, Peadir, Peadyr | Irish | |
| Phelan | Little wolf. | Felan, Feland, Pheland | Irish, Celtic | |
| Piran | Prayer | Peran, Pieran, Pieren, Pieryn, Pyran | Irish | |
| Quillan | Cub | Quilan, Quilen, Quilin, Quille, Quillin, Quillon, Quillyn, Quilon, Quilyn | Irish | |
| Quinlan | Very strong, well-formed, athletic. | Quindlen, Quinlen, Quinlin, Quinn, Quinnlan, Quynlan, Quynlen, Quynlin, Quynlon, Quynlyn | Irish | |
| Quinn | Fifth's son estate, wisdom. | Quin, Quyn, Quynn | Irish, Gaelic | |
| Rafferty | Rich, son of prosperity. | Rafertee, Rafertey, Raferti, Rafertie, Raferty | Irish, Gaelic | |
| Raghnall | Wise, powerful. | Raghnal, Ragnal, Ragnall | Irish | |
| Rashaun | God is gracious. a form of shaun. | Rasean, Rashaughn, Rashawn, Rashon | Irish, African american | |
| Reagan | Little king. | Raegan, Raegin, Raegon, Raegyn, Raigan, Raigen, Raigin, Raigon, Raigyn, Raygan, Raygen, Raygin, Raygon, Raygyn, Reegan, Reegen, Reegin, Reegon, Reegyn, Regan, Regen, Regin, Regon, Regyn, Reigan, Reige | Irish | |
| Regan | Little king. | Raegan, Raegin, Raegon, Raegyn, Raigan, Raigen, Raigin, Raigon, Raigyn, Raygan, Raygen, Raygin, Raygon, Raygyn, Reagan, Reegan, Reegen, Reegin, Reegon, Reegyn, Regen, Regin, Regon, Regyn, Reig, Reigan | Irish | |
| Renny | Small strength. a short form of names beginning with "ren". | Renee, Reney, Reni, Renie, Rennee, Renney, Renni, Reny | Irish | |
| Riley | Valiant, war-like. | Reilea, Reileah, Reilee, Reileigh, Reili, Reilie, Reillea, Reilleah, Reillee, Reilleigh, Reilli, Reillie, Reilly, Reily, Rylea, Ryleah, Rylee, Ryleigh, Ryley, Ryli, Rylie, Ryly | Irish, Gaelic | |
| Riordan | The king's poet | Ryordan | Irish, Gaelic | |
| Roarke | Famous ruler | Rork, Rorke, Rourk, Rourke, Ruark | Irish, Gaelic | |
| Rogan | Red-haired, spirited redhead. | Rogen, Rogin, Rogon, Rogun, Rogyn | Irish, Gaelic | |
| Rooney | Red-haired. | Roonee, Rooni, Roonie, Roony, Rowan, Rowen, Rowney | Irish, Gaelic | |
| Rory | The ruddy one, the red king. | Roree, Rorey, Rori, Rorie, Ruaidhri (irish), Rurik (slavic) | Irish, Gaelic | |
| Roshaun | Red-haired one whose god is gracious. a combination of ross and shaun. | Irish, African american | ||
| Rourke | Might | Roark, Roarke, Rork, Rorke | Irish | |
| Row | Red-haired | Irish | ||
| Rowson | Row's son, son of the red-haired one. | Rawson | Irish | |
| Ruadhan | Little one with red hair. | Irish | ||
| Ryan | Little king. | Rhian, Rhien, Rhion, Rhiun, Rhiyn, Rian, Rien, Rion, Riun, Riyn, Ryann, Ryen, Ryin, Ryon, Ryun | Irish, Gaelic | |
| Ryne | Little king. a form of ryan. | Rine | Irish | |
| Savage | Untamed | Savag, Savaig, Savaige, Savyg | Irish, English | |
| Scanlon | Little scandalous one. | Scanlan, Scanlen, Scanlin, Scanlyn | Irish | |
| Scully | Town crier. | Scullea, Sculleah, Scullee, Sculleigh, Sculley, Sculli, Scullie | Irish | |
| Seafra | God's peace. | Safrah | Irish | |
| Seamus | God is gracious. a form of sean or shane. | James | Irish | |
| Sean | God is gracious. a form of john. | Schaun, Schaune, Schawn, Schawne, Seaghan, Seain, Seaine, Seanan, Seane, Seanen, Seann, Seannan, Seannen, Seannon, Seatn, Seayne, Shane, Shaughn, Shaun, Shaune, Shawn, Shawne, Shon, Shorn, Shorne, Sio | Irish | |
| Seanan | Old wisdom. | Senan, Sinan, Sinon, Sinyn | Irish | |
| Seoirse | Farmer. a form of george. | Irish | ||
| Shamus | God is gracious. a form of sean or shane. | James, Shaimis, Shaimus, Shamis, Shaymis, Shaymus | Irish | |
| Shanahan | Wisdom | Seanahan, Shaunahan, Shawnahan | Irish | |
| Shane | God is gracious. | Chaen, Chaene, Chain, Chaine, Chane, Chayn, Chayne, Cheyn, Cheyne (scottish), Shaen, Shaene, Shain, Shaine, Shayn, Shayne | Irish | |
| Shank | God is good. | Irish | ||
| Shanley | Old hero from the meadow. | Shanlea, Shanleah, Shanlee, Shanleigh, Shanli, Shanlie, Shanly | Irish | |
| Shannon | Hero who is wise, small | Shanan, Shanen, Shanin, Shannan, Shannen, Shannin, Shannyn, Shanon, Shanyn | Irish | |
| Shawn | God is gracious. a form of john. | Schaun, Schaune, Schawn, Schawne, Seaghan, Seain, Seaine, Sean, Seanan, Seane, Seanen, Seann, Seannan, Seannen, Seannon, Seatn, Seayne, Shane, Shaughn, Shaun, Shaune, Shawne, Shon, Shorn, Shorne, Sion | Irish | |
| Shawnel | God's gracious champion. a combination of shewn and nell. | Seanel, Shaughnel, Shaunel | Irish, African amercian | |
| Shawnta | God is gracious. a form of shawn | Seanta, Seantah, Shantah, Shaunta, Shauntah | Irish, American | |
| Shay | Gift; from the fairy palace | Shae, Shai, Shaye | Irish, Hebrew | |
| Shea | Majestic, courteous, scientific, ingenious one. | Sheah | Irish | |
| Sheach | Courteous | Irish, Scottish | ||
| Sheary | Peaceful | Shearee, Shearey, Sheari, Shearie | Irish | |
| Sheehan | Little peace. | Sheehen | Irish | |
| Sheridan | Wild; from the shire valley. | Sheriden, Sheridon, Sheridyn, Sherisin, Sheryden, Sherydin, Sherydon, Sherydyn, Syerydan | Irish, Old english | |
| Sholto | The teal duck; sower of seeds. | Irish, Celtic, Gaelic | ||
| Sierra | Black; saw-like toothed; mountain. | Siera, Sierah, Sierrah, Syera, Syerah, Syerra, Syerrah | Irish, Arabic, Spanish | |
| Skelly | Teller of stories. | Skelea, Skeleah, Skelee, Skeleigh, Skeley, Skeli, Skelie, Skell, Skellea, Skelleah, Skellee, Skelleigh, Skelley, Skelli, Skellie, Skely | Irish | |
| Slavin | Mountain man. | Slavan, Slaven, Slavon, Slavyn | Irish | |
| Slevin | Mountain climber. | Salvon, Slavan, Slaven, Slavin, Slavyn, Slevan, Sleven, Slevon, Slevyn | Irish | |
| Sloane | Warrior | Sloan | Irish | |
| Strahan | Poet, wisdom. | Irish, Gaelic | ||
| Struthers | From the stream. | Irish, Gaelic | ||
| Sweeney | Little hero; strength. | Swe3anie, Sweaney, Sweani, Sweany, Sweenee, Sweeni, Sweenie, Sweeny | Irish, Gaelic, Old english | |
| Tadhg | Poet or badger. | Tadlee, Tadleigh, Teague, Teige, Teyge, Tyegue | Irish | |
| Tadleigh | Poet from the meadow. | Tadlea, Tadleah, Tadlee, Tadley, Tadli, Tadlie, Tadly | Irish, English | |
| Tarrance | Smooth, good, gracious; from the place with th small rocky hills. a form of terence. | Tarance, Tarence, Tarince, Tarrence, Tarrince, Tarrynce, Tarynce, Terance, Terince, Terrance, Terrince, Terrynce, Terynce, Torance, Torence, Torrance, Torrant, Torrence, Torrent | Irish, English, Latin | |
| Teague | Low rider. handsome. poet. | Tadgh (irish), Taggart, Teagan, Teagun, Teak, Teeg, Teegue, Tegan, Teig, Teigan, Teige, Teigen, Teigue, Tighe, Tyg, Tygue | Irish, English, Native american | |
| Thaiter | Powerful warrior. a form of walter. | Thai | Irish, German | |
| Tiarnach | Devout | Tiarnac, Tyarnac, Tyarnach | Irish | |
| Tibbot | Bold person. | Tibbott, Tibot, Tibott, Tibout (dutch), Tybbot, Tybot | Irish | |
| Tiennan | Crowned. a form of stephen; master. | Tiernan, Tyennan | Irish, French | |
| Tierney | Of royal descent; lordly. | Tiarnach, Tiernan, Tyrney | Irish | |
| Tighearnach | Lordly | Tiarnach (english) | Irish | |
| Toal | People of strength | Irish | ||
| Toran | From the craggy hills. a form of torrence. | Tohran, Torn | Irish, Scottish | |
| Torin | Chief | Thorfin, Thorin, Thorstein, Thoryn, Torine, Torrin, Torrine, Torryn, Torryne, Toryn | Irish, Gaelic | |
| Tormey | Thunder spirit, thor's spirit. | Tormee, Tormi, Tormie, Tormy | Irish, Gaelic | |
| Torn | From the small round hills; to rip. | Torne | Irish, English | |
| Torna | Prince | Tornah | Irish | |
| Torrance | From the place with the small, rocky hills. | Irish, Gaelic | ||
| Tory | Thor / thunder; bandit, outlaw | Toree, Torey, Tori, Torie, Torri, Torrie, Torry | Irish, Old norse | |
| Tracy | Warrior; courageous. | Trace, Tracee, Tracey, Traci, Tracie, Treacey, Treaci, Treacie, Treacy | Irish, Gaelic, Latin | |
| Troy | Descendant of the foot soldier. also can be derived from the ancient greek city by that name. | Troi, Troye | Irish, Gaelic | |
| Tully | Lives with the peace of god, mighty people. | Tulea, Tuleah, Tulee, Tuley, Tuli, Tulie, Tullea, Tulleah, Tullee, Tulley, Tulli, Tullie, Tuly | Irish, Gaelic | |
| Turlough | Shaped like thor, shaped like thunder. | Thorlough, Torlough | Irish, Norse | |
| Tynan | Comes from the anglicised version of the gaelic name "o teimhneain", which is derived from the word teimhean, meaning 'dark'. | Tinan, Tinane, Tynane | Irish, Gaelic | |
| Tyrone | Monarch, royalty; from owen's land, from the well born one's land; sun, throne. | Teiron, Teirone, Terron, Tiron, Tirone, Tirown, Tirowne, Tyron, Tyroney, Tyronn, Tyroun, Tyrown, Tyrowne | Irish, Gaelic, Greek, Old persian | |
| Tyrus | Monarch, royalty, king; from owen's land, from the well born one's land; sun, throne. | Tirus, Tiruss, Tyrus, Tyruss | Irish, Gaelic, Greek, Old persian | |
| Ualter | Army ruler. | Uailtar, Ualteir, Ualter | Irish | |
| Uilliam | Determined guardian. a form of william. | Irish | ||
| Uiseann | Conqueror | Uinsean | Irish | |
| Venn | Fair-haired; dweller at the marsh. | Ven | Irish, Gaelic, Greek |