Irish Boy Names
Irish boy names have a knack for sounding both ancient and completely current. Tadhg, Cian and Darragh fill Irish classrooms today, Liam and Rory have become American staples, and heroes of legend like Fionn and Oisín are being given to babies again after fifteen centuries of storytelling.
We’ve gathered 90+ Irish boy names with pronunciation guides (because Gaelic spelling needs them) and meanings. You’ll find current favorites, saints, mythic warriors and anglicized classics. Looking for a sister? See our Irish girl names. For surnames and more background, visit Irish names or the wider list of Celtic boy names.
Popular Gaelic boy names in Ireland
These names are among the most-registered Gaelic boys’ names in Ireland in recent years. Stress usually falls on the first syllable.
| Name | Pronunciation | Meaning |
|---|---|---|
| Tadhg | TYGE | “Poet, philosopher” |
| Cian | KEE-an | “Ancient, enduring” |
| Darragh | DA-ra | “Oak tree” |
| Rían | REE-an | “Little king” |
| Cillian | KIL-ee-an | Possibly “church” or “strife” |
| Senan | SEN-an | “Little old one, wise” |
| Odhrán | OR-awn | “Little pale-green one” |
| Ruairí | ROR-ee | “Red king” |
| Donnacha | DUN-a-ka | “Brown-haired warrior” |
| Tiernan | TEER-nan | “Little lord” |
| Cathal | KA-hal | “Strong in battle” |
| Eoghan | OH-in | “Born of the yew tree” |
| Ronan | ROH-nan | “Little seal” |
| Caolán | KAY-lawn | “Slender one” |
| Mícheál | MEE-hawl | Irish form of Michael, “who is like God?” |
| Séamus | SHAY-mus | Irish form of James |
| Tomás | toh-MAWSS | Irish form of Thomas, “twin” |
Boy names from Irish mythology
Irish legends are full of heroes worth naming a son after. If you like these, the Norse sagas on our Viking boy names page offer a bolder, Scandinavian flavor.
| Name | Legend | Meaning |
|---|---|---|
| Fionn | Fionn mac Cumhaill, leader of the Fianna | “Fair, white” |
| Oisín | Poet-warrior son of Fionn who went to Tír na nÓg | “Little deer” |
| Oscar | Oisín’s son, the Fianna’s greatest fighter | “Deer lover” |
| Diarmuid | Lover of Gráinne, pursued by Fionn | Possibly “without envy” |
| Setanta | Boyhood name of the hero Cú Chulainn | Meaning uncertain |
| Conor | Conchobar mac Nessa, king of Ulster | “Lover of hounds” |
| Fergus | Fergus mac Róich, exiled Ulster king | “Man of vigor” |
| Conall | Conall Cernach, Cú Chulainn’s foster-brother | “Strong wolf” |
| Naoise | NEE-sha; Deirdre’s doomed lover | Meaning uncertain |
| Cormac | Cormac mac Airt, legendary high king | Possibly “charioteer” |
| Lugh | God of light, skill and craft | Possibly “light” |
| Aengus | God of love and youth | “One strength” |
| Nuada | Silver-handed king of the Tuatha Dé Danann | Possibly “cloud-maker” |
| Bran | Voyager to the Otherworld; also Fionn’s hound | “Raven” |
Irish saints’ names for boys
Early Irish monks carried Christianity across Europe, and their names are still classics. Browse more on our saint names page.
| Name | Meaning | Irish form / saint |
|---|---|---|
| Patrick | “Nobleman” (Latin) | Pádraig; patron saint of Ireland |
| Colm | “Dove” | Colm Cille (Columba), founder of Iona |
| Brendan | “Prince” | Bréanainn, the Navigator |
| Kevin | “Handsome, gentle birth” | Caoimhín of Glendalough |
| Kieran | “Little dark one” | Ciarán of Clonmacnoise |
| Declan | Possibly “man of prayer” | Deaglán of Ardmore |
| Fintan | “White fire” or “white ancient” | Several early saints |
| Finbar | “Fair-haired” | Fionnbarr, patron of Cork |
| Malachy | English form linked to Hebrew “my messenger” | Máel Máedóc, archbishop of Armagh |
| Enda | “Bird-like” | Éanna of the Aran Islands |
| Lorcan | “Little fierce one” | Lorcán Ua Tuathail (Laurence O’Toole), patron of Dublin |
| Canice | “Handsome one” | Cainneach, patron of Kilkenny |
Irish boy names popular in America
Many Irish names entered American use through surnames. Liam and Rory remain firmly in the US top charts (SSA data).
| Name | Meaning | Irish root |
|---|---|---|
| Liam | “Resolute protector” | Uilliam (William) |
| Aidan | “Little fire” | Aodhán |
| Connor | “Lover of hounds” | Conchobhar |
| Ryan | Possibly “little king” | Ó Riain |
| Rory | “Red king” | Ruairí |
| Nolan | “Descendant of the charioteer/champion” | Ó Nualláin |
| Keegan | “Son of little fire” | Mac Aodhagáin |
| Quinn | “Descendant of Conn” (chief) | Ó Cuinn |
| Riley | “Valiant” | Ó Raghallaigh |
| Finn | “Fair, white” | Fionn |
| Shane | Anglicized Seán, “God is gracious” | Seán |
| Desmond | “Man from South Munster” | Deasmhumhain |
| Brian | Possibly “high, noble” | After High King Brian Boru |
| Grady | “Noble, illustrious” | Ó Grádaigh |
| Sullivan | “Dark-eyed” | Ó Súileabháin |
| Casey | “Vigilant” | Ó Cathasaigh |
| Donovan | “Dark brown” | Ó Donnabháin |
Short Irish boy names
Some of the oldest Irish names are just one syllable long — and punchy.
| Name | Pronunciation | Meaning |
|---|---|---|
| Conn | KON | “Chief, head” |
| Art | ART | “Bear” |
| Niall | NEE-al | Possibly “champion” or “cloud” |
| Fiach | FEE-akh | “Raven” |
| Eoin | OH-in | Irish form of John |
| Seán | SHAWN | “God is gracious” |
| Aodh | AY (or EE) | “Fire” |
| Dáithí | DAW-hee | “Swiftness, nimbleness” |
| Ultan | UL-tan | “Man from Ulster” |
Irish boy names meaning wolf, fire and valor
Gaelic names often draw on animals and warrior virtues. Find more on our names that mean wolf and names that mean warrior pages.
| Name | Pronunciation | Meaning |
|---|---|---|
| Faolán | FWAY-lawn | “Little wolf” |
| Cuán | KOO-awn | “Little wolf, little hound” |
| Conan | KOH-nan | “Little hound, little wolf” |
| Ardal | AR-dal | “High valor” |
| Brennan | BREN-an | “Little raven” |
| Keenan | KEE-nan | “Little ancient one” |
| Kane | KAYN | “Battler, warrior” (Ó Catháin) |
| Egan | EE-gan | “Little fire” |
| Murrough | MUR-a | “Sea warrior” |
| Bearach | BAR-akh | “Sharp, pointed” |
| Lochlann | LOKH-lan | “Land of lakes” (Scandinavia) |
| Brogan | BROH-gan | “Sturdy shoe” |
Vintage Irish boy names
Grandfather names from the mid-20th century are ripe for revival.
| Name | Meaning | Irish form |
|---|---|---|
| Eamon | “Wealthy protector” | Éamonn (Edmund) |
| Fergal | “Man of valor” | Fearghal |
| Donal | “World ruler” | Dónall |
| Hugh | Anglicized Aodh, “fire” | Aodh |
| Barry | “Fair-haired” | Barra |
| Turlough | “Instigator” | Toirdhealbhach |
| Phelim | “Ever good” | Feidhlim |
| Ruadhán | “Little red-haired one” | Ruadhán |
| Cathaoir | “Warrior” | Cathaoir |
How to choose an Irish boy name
- Practice the pronunciation first. If you love Tadhg or Donnacha, be ready to say it for teachers and doctors. Names like Ronan, Cian and Rory need little explanation.
- Pick a spelling on purpose. Aodhán vs Aidan, Ruairí vs Rory: the Gaelic form signals heritage, the anglicized form eases everyday life abroad.
- Balance with your surname. Irish first names often double as surnames (Quinn, Casey, Brennan); make sure first and last don’t sound like two surnames.
- Borrow from the neighbors. Scotland shares many names (Niall, Ruaridh, Conall) — see Scottish boy names.
- Read the legend. Diarmuid and Naoise both have tragic love stories; that can be romantic, or a reason to choose another hero.
Frequently asked questions
What is the most popular Irish boy name?
In Ireland, Jack, Noah and James top recent rankings, with Tadhg, Oisín, Cian and Fionn the most popular Gaelic names. In the US, Liam is the most popular name of Irish origin.
How do you pronounce Tadhg?
Tadhg is pronounced TYGE, rhyming with “tiger” without the “-er.” It means “poet” or “philosopher.”
What Irish boy name means warrior?
Cathal (“strong in battle”), Murrough (“sea warrior”), Donnacha (“brown-haired warrior”) and Kane (“battler”) all carry warrior meanings.
What are unique Irish boy names?
Faolán, Dáithí, Bearach, Ultan, Cathaoir and Naoise are authentic Gaelic names that are rare outside Ireland.
Is Finn an Irish name?
Yes. Finn comes from Fionn, meaning “fair” or “white,” and recalls the legendary hero Fionn mac Cumhaill (Finn McCool).