Aidan m Irish, English (Modern)Anglicized form of
Aodhán. In the latter part of the 20th century it became popular in America due to its sound, since it shares a sound with such names as
Braden and
Hayden. It peaked ranked 39th for boys in 2003.
Ailbhe f & m Irish, Irish MythologyFrom Old Irish
Ailbe, possibly derived from the Celtic root *
albiyo- "world, light, white" or Old Irish
ail "rock". In Irish legend this was the name of a female warrior of the Fianna. It was also the name of a 6th-century male saint, the founder of a monastery at Emly.
Ailill m Old Irish, Irish MythologyMeans
"elf" in Irish. This name was borne by several early Irish kings. It also occurs frequently in Irish legend, borne for example by the husband of Queen
Medb. It was also the name of two saints, both bishops of Armagh in the 6th century.
Brendan m Irish, English, BretonFrom
Brendanus, the Latinized form of the Old Irish name
Bréanainn, which was derived from Old Welsh
breenhin meaning
"king, prince". Saint Brendan was a 6th-century Irish abbot who, according to legend, crossed the Atlantic and reached North America with 17 other monks.
Brennan m EnglishFrom an Irish surname (Anglicized from Irish Gaelic
Ó Braonáin) that was derived from the byname
Braonán, itself from Irish
braon meaning "rain, moisture, drop" combined with a diminutive suffix. As a given name, it has been used since the 1960s as an alternative to
Brendan or
Brandon, though it has not been as popular as them.
Brian m English, Irish, Old IrishMeaning uncertain, possibly related to the old Celtic root *
brixs "hill, high" (Old Irish
brií) or the related *
brigā "might, power" (Old Irish
briíg). It was borne by the Irish king Brian Boru, who thwarted Viking attempts to conquer Ireland in the 11th century. He was slain in the Battle of Clontarf, though his forces were decisively victorious. This name was common in Ireland after his time, and it was introduced to northern England by Norse-Gael settlers. It was also used in Brittany, and was brought to England by Bretons in the wake of the Norman Conquest. Though it eventually became rare in the English-speaking world, it was strongly revived in the 20th century, becoming a top-ten name for boys in most regions.
Bryan m EnglishVariant of
Brian, based on the usual spelling of the surname that is derived from the name.
Cailean m Scottish GaelicMeans
"whelp, young dog" in Scottish Gaelic. This name was borne by Cailean Mór, a 13th-century Scottish lord and ancestor of Clan Campbell.
Callan m EnglishFrom an Irish surname, the Anglicized form of
Ó Cathaláin, derived from the given name
Cathalán.
Caolán m IrishFrom Irish
caol meaning
"slender" combined with the diminutive suffix
-án.
Caomhán m Irish (Rare)From Old Irish
Cóemán, derived from
cóem "dear, beloved, gentle" combined with a diminutive suffix. This was the name of several early Irish saints.
Carey m & f EnglishFrom an Irish surname, the Anglicized form of
Ó Ciardha, which is a patronymic derived from the given name
Ciardha.
Carroll m IrishAnglicized form of
Cearbhall. A famous bearer of the surname was Lewis Carroll (1832-1898), whose real name was Charles Lutwidge Dodgson, a British author known for
Alice's Adventures in Wonderland.
Carthach m Old IrishMeans
"loving" in Irish. This was the name of two Irish saints, from the 6th and 7th centuries.
Cary m & f EnglishVariant of
Carey. A famous bearer was the British-American actor Cary Grant (1904-1986).
Casey m & f EnglishFrom the Irish surname
Casey, an Anglicized form of
Ó Cathasaigh, a patronymic derived from the given name
Cathassach. This name can be given in honour of Casey Jones (1863-1900), a train engineer who sacrificed his life to save his passengers. In his case,
Casey was a nickname acquired because he was raised in the town of Cayce, Kentucky.
Cathal m Irish, Old IrishDerived from Old Irish
cath "battle" and
fal "rule". This was the name of a 7th-century Irish saint. It was also borne by several Irish kings. It has sometimes been Anglicized as
Charles.
Ceallach m Irish (Rare)From Old Irish
Cellach, of uncertain origin, traditionally said to mean
"bright-headed". Alternatively it could be derived from Old Irish
cellach "war, strife" or
cell "church". This name was borne by several early Irish kings and by a 12th-century saint, an archbishop of Armagh.
Ciarán m Irish, Old IrishDiminutive of
Ciar. This was the name of two 6th-century Irish saints: Ciarán the Elder, the founder of the monastery at Saighir, and Ciarán the Younger, the founder of the monastery at Clonmacnoise.
Coinneach m Scottish GaelicScottish Gaelic form of the Old Irish name
Cainnech, derived from
caín meaning
"handsome, beautiful, good". It is often Anglicized as
Kenneth. It is also used as a modern Scottish Gaelic form of the unrelated name
Cináed.
Collins f & m EnglishFrom a surname, which is either Irish or English in origin (see
Collins 1 and
Collins 2). It increased in popularity as a name for girls after it appeared in the movie
The Blind Side (2009), which was based on a 2006 biography. As a masculine name, it is currently most common in parts of English-speaking Africa.
Connor m Irish, English (Modern)Variant of
Conor, based on the usual spelling of the surname that is derived from the name. This is currently the most common way of spelling it in the English-speaking world, apart from Ireland.
Cullen m EnglishFrom a surname, either
Cullen 1 or
Cullen 2. It jumped a little in popularity as a given name after Stephenie Meyer's novel
Twilight (2005), featuring a vampire named Edward Cullen, was adapted into a movie in 2008.
Dagda m Irish MythologyMeans
"the good god" from the Old Irish prefix
dag- "good" and
día "god". In Irish myth Dagda (called also The Dagda) was the powerful god of the earth, knowledge, magic, abundance and treaties, a leader of the Tuatha Dé Danann. He was skilled in combat and healing and possessed a huge club, the handle of which could revive the dead.
Dáire m Irish, Irish MythologyMeans
"fruitful, fertile" in Irish. This name is borne by many figures in Irish legend, including the Ulster chief Dáire mac Fiachna who reneged on his promise to loan the Brown Bull of Cooley to
Medb, starting the war between Connacht and Ulster as told in the Irish epic
The Cattle Raid of Cooley.
Daley f & m English (Rare), Dutch (Modern)From an Irish surname, an Anglicized form of
Ó Dálaigh, itself derived from the given name
Dálach. Its recent popularity in the Netherlands can be attributed to the Dutch soccer player Daley Blind (1990-).
Declan m Irish, EnglishAnglicized form of Irish
Deaglán, Old Irish
Declán, which is of unknown meaning. Saint Declan was a 5th-century missionary to the Déisi peoples of Ireland and the founder of the monastery at Ardmore.
... [more] Desi m & f EnglishDiminutive of
Desmond,
Desiree and other names beginning with a similar sound. In the case of musician and actor Desi Arnaz (1917-1986) it was a diminutive of
Desiderio.
Desmond m English, IrishAnglicized form of Irish
Deasmhumhain meaning "south Munster", referring to the region of Desmond in southern Ireland, formerly a kingdom. It can also come from the related surname (an Anglicized form of
Ó Deasmhumhnaigh), which indicated a person who came from that region. A famous bearer is the South African archbishop and activist Desmond Tutu (1931-2021).
Devon m & f EnglishVariant of
Devin. It may also be partly inspired by the name of the county of Devon in England, which got its name from the Dumnonii, a Celtic tribe.
Dewayne m EnglishVariant of
Duane, with the spelling altered due to the influence of
Wayne. It can be spelled
Dewayne or with a capitalized third letter as
DeWayne.
Donald m Scottish, EnglishFrom the Scottish Gaelic name
Dòmhnall meaning
"ruler of the world", composed of the Old Irish elements
domun "world" and
fal "rule". This was the name of two 9th-century kings of the Scots and Picts. It has traditionally been very popular in Scotland, and during the 20th century it became common in the rest of the English-speaking world. This is the name of one of Walt Disney's most popular cartoon characters, Donald Duck, introduced 1931. It was also borne by Australian cricket player Donald Bradman (1908-2001) and American president Donald Trump (1946-).
Douglas m Scottish, EnglishFrom a Scottish surname that was from the name of a town in Lanarkshire, itself named after a tributary of the River Clyde called the Douglas Water. It means
"dark river", derived from Gaelic
dubh "dark" and
glais "water, river" (an archaic word related to
glas "grey, green"). This was a Scottish Lowland clan, the leaders of which were powerful earls in the medieval period. The Gaelic form is
Dùghlas or
Dùbhghlas. It has been used as a given name since the 16th century.
Duncan m Scottish, EnglishAnglicized form of the Scottish Gaelic name
Donnchadh, derived from Old Irish
donn "brown" and
cath "battle". This was the name of two kings of Scotland, including the one who was featured in Shakespeare's play
Macbeth (1606).
Eoghan m Irish, Irish MythologyPossibly means
"born from the yew tree", from Old Irish
eó "yew" and the suffix
gan "born". Alternatively, it might be derived from the Latin name
Eugenius. It was borne by several legendary or semi-legendary Irish figures, including a son of the king
Niall of the Nine Hostages.
Faolán m Irish (Rare)Means
"little wolf", derived from Old Irish
fáel "wolf" combined with a diminutive suffix. This was the name of an Irish saint who did missionary work in Scotland.
Farrell m EnglishFrom an Irish surname, an Anglicized form of
Ó Fearghail, derived from the given name
Fearghal.
Féchín m Old IrishMeans
"little raven" from Old Irish
fiach "raven" combined with a diminutive suffix. This was the name of an Irish saint of the 7th century, the founder of the monastery at Fore. He died of the yellow plague.
Fergus m Irish, Scottish, Irish Mythology, Old IrishMeans
"man of vigour", derived from the Old Irish elements
fer "man" and
guss "vigour, strength, force". This was the name of several early rulers of Ireland and Dál Riata, as well as many characters from Irish legend. Notably it was borne by the hero Fergus mac Róich, who was tricked into giving up the kingship of Ulster to
Conchobar. However, he remained loyal to the new king until Conchobar betrayed
Deirdre and
Naoise, at which point he defected to Connacht in anger. The name was also borne by an 8th-century saint, a missionary to Scotland.
... [more] Fiachra m Irish, Irish MythologyFrom Old Irish
Fiachrae, possibly from
fiach "raven" or
fích "battle" combined with
rí "king". This was the name of several legendary figures, including one of the four children of
Lir transformed into swans for a period of 900 years. This is also the name of the patron saint of gardeners: a 7th-century Irish abbot who settled in France, usually called Saint Fiacre.
Finbar m IrishAnglicized form of Irish
Fionnbharr, Old Irish
Finnbarr, derived from
finn "white, blessed" and
barr "top, head". Saint Finbar of Cork was a 6th-century bishop who supposedly performed miraculous cures. The Isle of Barra off Scotland was (probably) named for him.
Finley m & f EnglishVariant of
Finlay. This is by far the preferred spelling in the United States, where it has lately been more common as a feminine name.
Fintan m Irish, Irish Mythology, Old IrishPossibly means either
"white fire" or
"white ancient" in Irish. According to legend this was the name of the only Irish person to survive the great flood. This name was also borne by many Irish saints.
Kayce m & f English (Modern)Variant of
Casey or
Case (depending on the pronunciation). It was popularized by the character Kayce Dutton (pronounced like Casey) from the television series
Yellowstone (2018-2024).
Keegan m EnglishFrom an Irish surname, the Anglicized form of Irish Gaelic
Mac Aodhagáin, which was derived from the given name
Aodhagán, a double diminutive of
Aodh.
Kelly m & f Irish, EnglishAnglicized form of the Irish given name
Ceallach or the surname derived from it
Ó Ceallaigh. As a surname, it has been borne by actor and dancer Gene Kelly (1912-1996) and actress and princess Grace Kelly (1929-1982).
... [more] Kenneth m Scottish, English, Swedish, Danish, NorwegianAnglicized form of both
Coinneach and
Cináed. This name was borne by the Scottish king Kenneth (Cináed) mac Alpin, who united the Scots and Picts in the 9th century. It was popularized outside of Scotland by Walter Scott, who used it for the hero in his 1825 novel
The Talisman. A famous bearer was the British novelist Kenneth Grahame (1859-1932), who wrote
The Wind in the Willows.
Kermit m EnglishFrom a rare (Americanized) Manx surname, a variant of the Irish surname
Mac Diarmada, itself derived from the given name
Diarmaid. This was the name of a son of Theodore Roosevelt born in 1889. He was named after a relative of his mother, Robert Kermit. The name is now associated with Kermit the Frog, a Muppet created by puppeteer Jim Henson in 1955.
Kerry m & f EnglishFrom the name of the Irish county, called
Ciarraí in Irish Gaelic, which means "
Ciar's people".
Kyle m EnglishFrom a Scottish surname that was derived from various place names, themselves from Gaelic
caol meaning
"narrows, channel, strait". As a given name it was rare in the first half of the 20th century. It rose steadily in popularity throughout the English-speaking world, entering the top 50 in most places by the 1990s. It has since declined in all regions.
Lachlan m Scottish, EnglishAnglicized form of
Lachlann, the Scottish Gaelic form of
Lochlainn. In the English-speaking world, this name was especially popular in Australia towards the end of the 20th century.
Lonán m Irish, Old IrishMeans
"little blackbird", derived from Old Irish
lon "blackbird" combined with a diminutive suffix. This name was borne by several early saints.
Lorcán m IrishMeans
"little fierce one", derived from Old Irish
lorcc "fierce" combined with a diminutive suffix. Saint Lorcán was a 12th-century archbishop of Dublin.
Lughaidh m Irish MythologyFrom Old Irish
Lugaid, a combination of the name of the mythological figure
Lugh and Old Irish
dech "honour, better". This was the name of several characters in Irish legend, including the king Lugaid mac Con.
Macbeth m HistoryAnglicized form of the Scottish Gaelic given name
Mac Beatha meaning
"son of life", implying holiness. This was the name of an 11th-century Scottish king who came to power after defeating and killing King
Duncan in battle. Years later he was himself slain in battle with Duncan's son
Malcolm. Shakespeare based his play
Macbeth (1606) loosely on this king's life, drawing from the tales related in
Holinshed's Chronicles (1587).
Malcolm m Scottish, EnglishAnglicized form of Scottish Gaelic
Máel Coluim, which means
"disciple of Saint Columba". This was the name of four kings of Scotland starting in the 10th century, including Malcolm III, who became king after killing
Macbeth, the usurper who had defeated his father
Duncan. The character Malcolm in Shakespeare's tragedy
Macbeth (1606) is loosely based on him. Another famous bearer was Malcolm X (1925-1965), an American civil rights leader.
Malone m & f English (Rare)From an Irish surname, an Anglicized form of
Ó Maoil Eoin meaning
"descendant of a disciple of Saint John".
Meallán m Irish (Rare)From Old Irish
Mellán, derived from
mell meaning either "pleasant, delightful" or "lump, ball" combined with a diminutive suffix. This was the name of a few early saints.
Merrill m EnglishFrom an English surname that was derived either from the given name
Muriel or from place names meaning "pleasant hill".
Monroe m & f EnglishFrom a Scottish surname meaning
"from the mouth of the Roe". The Roe is a river in Northern Ireland. Two famous bearers of the surname were American president James Monroe (1758-1831) and American actress Marilyn Monroe (1926-1962).
... [more] Murphy m & f EnglishFrom a common Irish surname, the Anglicized form of Irish Gaelic
Ó Murchadha, itself derived from the given name
Murchadh. As a given name, it has been borne by female characters on the American television series
Murphy Brown (1988-1998) and the movie
Interstellar (2014).
Naoise m Irish, Irish MythologyMeaning unknown, presumably of Irish origin. In Irish legend he was the young man who fled to Scotland with
Deirdre, who was due to marry
Conchobar the king of Ulster. Conchobar eventually succeeded in capturing Deirdre and killing Naoise, which caused Deirdre to die of grief.
Neely m & f English (Rare)From a Scottish surname, an Anglicized and reduced form of Gaelic
Mac an Fhilidh (or
McNeilly) meaning
"son of the poet".
Nelson m English, SpanishFrom an English surname meaning
"son of Neil". It was originally given in honour of the British admiral Horatio Nelson (1758-1805). His most famous battle was the Battle of Trafalgar, in which he destroyed a combined French and Spanish fleet, but was himself killed. Another notable bearer was the South African statesman Nelson Mandela (1918-2013). Mandela's birth name was
Rolihlahla; as a child he was given the English name
Nelson by a teacher.
Nigel m EnglishFrom
Nigellus, a medieval Latinized form of
Neil. It was commonly associated with Latin
niger "black". It was revived in the 19th century, perhaps in part due to Walter Scott's novel
The Fortunes of Nigel (1822).
Odhrán m IrishFrom Old Irish
Odrán, derived from
odar "dun-coloured, greyish brown, tan" combined with a diminutive suffix. This was the name of a saint who travelled with Saint Columba through Scotland.
Oisín m Irish, Irish MythologyMeans
"little deer", derived from Old Irish
oss "deer, stag" combined with a diminutive suffix. In Irish legend Oisín was a warrior hero and a poet, the son of
Fionn mac Cumhaill and the narrator in many of his tales.
Ormond m English (Rare)From an Irish surname, an Anglicized form of Irish Gaelic
Ó Ruaidh, derived from the given name
Ruadh.
Oscar m English, Irish, Portuguese (Brazilian), Italian, Swedish, Norwegian, Danish, Dutch, French, Irish MythologyPossibly means
"deer friend", derived from Old Irish
oss "deer" and
carae "friend". Alternatively, it may derive from the Old English name
Osgar or its Old Norse cognate
Ásgeirr, which may have been brought to Ireland by Viking invaders and settlers. In Irish legend Oscar was the son of the poet
Oisín and the grandson of the hero
Fionn mac Cumhaill.
... [more] Oskar m German, Swedish, Norwegian, Danish, Estonian, Finnish, Polish, Czech, Slovene, BasqueForm of
Oscar in several languages. A famous bearer was Oskar Schindler (1908-1974), who is credited for saved over 1,000 Polish Jews during World War II.
Quinlan m & f English (Rare)From an Irish surname, an Anglicized form of
Ó Caoindealbháin, itself from the given name
Caoindealbhán (Old Irish
Caíndelbán).
Reagan f & m English (Modern)From an Irish surname, an Anglicized form of
Ó Riagáin, derived from the given name
Riagán. This surname was borne by American actor and president Ronald Reagan (1911-2004).
... [more] Regan f & m Literature, EnglishMeaning unknown. In the chronicles of Geoffrey of Monmouth it is the name of a treacherous daughter of King
Leir. Shakespeare adapted the story for his tragedy
King Lear (1606). In the modern era it has appeared in the horror movie
The Exorcist (1973) belonging to a girl possessed by the devil. This name can also be used as a variant of
Reagan.
Riagán m Irish (Rare)From Old Irish
Riacán, probably derived from
rí "king" combined with a diminutive suffix.
Roderick m English, Scottish, WelshMeans
"famous ruler" from the Old German elements
hruod "fame" and
rih "ruler, king". This name was in use among the Visigoths; it was borne by their last king (Gothic form *
Hroþireiks, also known by the Spanish form
Rodrigo), who died fighting the Muslim invaders of Spain in the 8th century. It also had cognates in Old Norse and West Germanic, and Scandinavian settlers and Normans introduced it to England, though it died out after the Middle Ages. It was revived in the English-speaking world by Walter Scott's 1811 poem
The Vision of Don Roderick.
... [more] Rónán m Irish, Old IrishMeans
"little seal", derived from Old Irish
rón "seal" combined with a diminutive suffix. This was the name of several early Irish saints, including a pilgrim to Brittany who founded the hermitage at Locronan in the 6th century.
Rory m & f Irish, Scottish, EnglishAnglicized form of
Ruaidhrí. Typically a masculine name, it gained some popularity for girls in the United States after it was used on the television series
Gilmore Girls (2000-2007), in this case as a nickname for
Lorelai. Despite this, the name has grown more common for boys in America, especially after 2011, perhaps due to Northern Irish golfer Rory McIlroy (1989-).
Rowan m & f Irish, English (Modern)Anglicized form of the Irish name
Ruadhán. As an English name, it can also be derived from the surname Rowan, itself derived from the Irish given name. It could also be given in reference to the rowan tree, a word of Old Norse origin (coincidentally sharing the same Indo-European root meaning "red" with the Irish name).
Ruadhán m IrishFrom Old Irish
Rúadán, derived from
rúad "red" combined with a diminutive suffix. This was the name of the founder of the monastery of Lorrha in the 6th century.
Ruaidhrí m IrishFrom Old Irish
Ruaidrí meaning
"red king", from
rúad "red" combined with
rí "king". This was the name of the last high king of Ireland, reigning in the 12th century.
Ryan m EnglishFrom a common Irish surname, the Anglicized form of
Ó Riain. This patronymic derives from the given name
Rian, which is of uncertain meaning. It is traditionally said to mean
"little king", from Irish
rí "king" combined with a diminutive suffix.
... [more] Shannon f & m EnglishFrom the name of the River Shannon, the longest river in Ireland, called
an tSionainn in Irish. It is associated with the legendary figure
Sionann and is sometimes said to be named for her. However it is more likely she was named after the river, which may be related to Old Irish
sen "old, ancient". As a given name, it first became common in America after the 1940s.
Suibhne m Irish MythologyFrom Old Irish
Suibne, possibly derived from
subae meaning
"joy, pleasure". This was the name of several figures from early Irish history, including a 7th-century high king and an 8th-century saint. It also appears in the Irish legend
Buile Suibhne (meaning "The Madness of Suibhne") about a king who goes insane after being cursed by Saint Rónán Finn.
Tighearnach m Medieval IrishFrom Old Irish
Tigernach, derived from
tigerna meaning
"lord". This was the name of an Irish saint, the founder of the monastery at Clones in the 6th century. According to some tales of his life, he was taken by British pirates to the monastery of Rosnat in his youth, but he escaped and returned to Ireland.
Tighearnán m Medieval IrishFrom Old Irish
Tigernán meaning
"little lord", from
tigerna "lord" combined with a diminutive suffix. It was borne by a 6th-century saint who founded a monastery at Errew. It was also the name of a 12th-century king of Breifne.
Toirdhealbhach m Irish (Rare)From Old Irish
Tairdelbach meaning
"instigator", derived from
tairdelb "prompting". This name was borne by several medieval Irish kings.
Tyrone m English, African AmericanFrom the name of a county in Northern Ireland, which is derived from Irish Gaelic
Tir Eoghain meaning "land of
Eoghan". This name was popularized by American actor Tyrone Power (1914-1958), who was named after his great-grandfather, an Irish actor.
Ultán m Irish, Old IrishMeans
"of Ulster" in Irish. Ulster is a region in the north of Ireland. This name was borne by two 7th-century Irish saints.