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Irish Surnames as Baby Names

Irish surnames have eclipsed traditional first names as baby names, especially for girls. Irish surnames such as Riley, Kennedy, and Finley are more popular baby names in the US today than traditional Irish names such as Bridget and Patrick.

Riley is the top Irish name of any kind of baby girls in the US today, with Ryan the top Irish surname used as a first name for boys. Along with Riley and Ryan, the other top Irish surname names used as first names in the US are Connor and Nolan for boys, Kennedy and Quinn for girls.

One fresh factor in Irish surnames for babies: Names that start with Mac or O' are now fair game as first names. So if you want to name your baby O'Brien or McNamara, go right ahead. Here's a whole group of rollicking Irish surnames that work for both girls and boys....or you can use one from your own family background.

To explore Irish name options beyond surnames, click here for our full list of Irish baby names.

Costello

Meaning: from England

Origin:Irish surname
3798
Mabry

Meaning: mud hill

Origin:Variation of Mayberry, English and Irish
3905
Gilmore

Meaning: devoted to the Virgin Mary

Origin:Irish and Scottish
4170
O'reilly

Meaning: son of the courageous one

Origin:Irish
10748
Farrelly The name Farrelly is an anglicized variant o...
Origin:Irish
11068
Donough

Meaning: brown chieftain

Origin:Irish
11080
Kavanagh

Meaning: born handsome or son of Caomhan

Origin:Irish
11227
Luck Number: 8
11236
Luck Number: 4
11287
Mcdermott

Meaning: son of Diarmaid

Origin:Irish
11307
O'donnell

Meaning: son of the brave one

Origin:irish
11347
O'fallon

Meaning: son of the leader

Origin:Irish
11348
Fagan The name Fagan is a male-given name that tra...
Origin:Latin
11733
Flinn The meaning of Flinn is ‘son of Flann’. It a...
Origin:Gaelic
16529
Flinn The meaning of Flinn is ‘son of Flann’. It a...
Origin:Gaelic
11745
Looney

Meaning: the son of Giolla Dhomhnaigh

Origin:Irish and Manx
12201
Luck Number: 2
12389
Luck Number: 3
12407
Doherty

Meaning: not loving

Origin:Irish
12465
O'callahan

Meaning: son of the church lover

Origin:Irish
16434