Irish (Gaelic) names

34 names of Irish (Gaelic) origin — 11 girls', 21 boys'.

About Irish (Gaelic) names

This page collects every Irish (Gaelic) first name in the NameRarity index — 34 in total, 11 given to girls and 21 given to boys. Each one carries its meaning, pronunciation, rarity score, numerology reading and the lucky number and colour traditionally attached to it.

Irish (Gaelic) names in this collection average a rarity score of 54 out of 100. 11 of them score 70 or above, which puts them among the genuinely uncommon — Rafferty is the rarest here at 92/100, meaning roughly one person in 476,190 carries it. At the other end, 11 are familiar enough to score below 40, with Liam the most widely used. 22 appear in recent US top-1000 rankings.

They run from Finn at 4 letters to Rafferty at 8, so there is room to pick for sound and length as well as meaning. The qualities these names most often carry are loyal, warm, playful and wry. Their strongest periods of use span 11 different eras.

Rarity here is a score out of 100 built from how often a name is actually recorded: a high score means few people share it, a low score means it is well established. Neither is better than the other — a rare name stands out in a classroom, a common one never needs spelling out. Open any name below for its full reading.

Choosing a Irish (Gaelic) name

Say the name out loud before anything else. A name lives in speech far more than on paper, and the pronunciation guide on each page is there so you can hear it the way it is meant to sound rather than guessing from the spelling. Try it with the surname it will sit beside, and try the shortened form people will inevitably use — if the short form is one you would not choose yourself, that is worth knowing early.

Then look at the meaning. Irish (Gaelic) names in this list carry meanings that range from the concrete to the poetic, and the meaning is usually the reason a family settles on one. Rafferty means “Prosperity wielder, floodtide”, for instance, while Liam means “Resolute protector, strong-willed warrior”. Two names can sound similar and mean entirely different things, so it is worth reading the entry rather than going on sound alone.

Finally, decide how much rarity you actually want. A score above 70 means the name will almost always be the only one in the room, which some people love and others find tiring to spell out for a lifetime. A score under 40 means it is familiar, easy to spell and easy to carry. Everything between is the middle ground most families end up choosing. Whichever way you lean, every entry below gives you the number so you are deciding with the figure in front of you rather than a hunch.

Rarest Irish (Gaelic) names

All Irish (Gaelic) names

Very Popular

Aiden

AY-den

Little fire

Irish (Gaelic)12% rare
Uncommon

Brendan

BREN-dun

Prince

Irish (Gaelic)53% rare
Uncommon

Brian

BRY-un

Noble, high

Irish (Gaelic)42% rare
Rare

Bridget

BRIJ-it

Exalted one, strength

Irish (Gaelic)69% rare
Rare

Cormac

KOR-mak

Charioteer

Irish (Gaelic)73% rare
Popular

Declan

DEK-lun

Full of goodness

Irish (Gaelic)32% rare
Rare

Delaney

deh-LAY-nee

Descendant of the challenger

Irish (Gaelic)60% rare
Rare

Desmond

DEZ-mund

From South Munster

Irish (Gaelic)64% rare
Uncommon

Donovan

DON-uh-vun

Dark-haired chieftain

Irish (Gaelic)55% rare
Popular

Finn

FIN

Fair, bright, white

Irish (Gaelic)21% rare
Rare

Keira

KEER-uh

Little dark one, dark-haired

Irish (Gaelic)57% rare
Rare

Kieran

KEER-un

Little dark-haired one

Irish (Gaelic)60% rare
Rare

Killian

KIL-ee-un

Little church, strife

Irish (Gaelic)63% rare
Very Popular

Liam

LEE-um

Resolute protector, strong-willed warrior

Irish (Gaelic)2% rare
Uncommon

Maeve

MAYV

She who intoxicates

Irish (Gaelic)39% rare
Rare

Niamh

NEEV

Radiance, brightness

Irish (Gaelic)72% rare
Popular

Nolan

NOH-lun

Descendant of the noble champion

Irish (Gaelic)26% rare
Popular

Nora

NOR-ah

Honour, light

Irish (Gaelic)18% rare
Popular

Oscar

OS-ker

Deer friend, champion warrior

Irish (Gaelic)30% rare
Popular

Quinn

KWIN

Descendant of the wise chief

Irish (Gaelic)28% rare
Popular

Riley

RY-lee

Valiant, courageous

Irish (Gaelic)19% rare
Rare

Ronan

ROH-nun

Little seal

Irish (Gaelic)58% rare
Uncommon

Rowan

ROH-an

Little red one; rowan tree

Irish (Gaelic)42% rare
Popular

Ryan

RY-un

Little king

Irish (Gaelic)20% rare
Rare

Saoirse

SEER-shah

Freedom

Irish (Gaelic)73% rare
Rare

Sullivan

SUL-ih-vun

Dark-eyed, hawk-eyed

Irish (Gaelic)68% rare