Surname Generator / Irish

Irish Surname Generator

Irish surnames are among the oldest hereditary surnames in Europe. The prefix 'Ó' (anglicised 'O') means 'descendant of' and 'Mac' means 'son of': O'Brien ('descendant of Brian'), McCarthy, O'Connor. Murphy — from Ó Murchadha, 'descendant of the sea-warrior' — is the most common surname in Ireland.

Generate Irish last names

Sampled from real, commonly recorded surnames of this origin. They are real family names — use thoughtfully. Tap ♡ to save favorites — your shortlist follows you across pages.

About Irish surnames

Murphy, Kelly, O'Sullivan, Walsh and O'Brien are the top five Irish surnames.
'O' = 'descendant of'; 'Mac/Mc' = 'son of'. Many families dropped the prefix under British rule and some have re-added it.
Walsh means 'Welshman' — a name for medieval settlers from Wales.
Fitz- (as in Fitzgerald) comes from Norman French 'fils', 'son of'.

More surname generators

English Surname Generator

Classic English last names — occupational, place-based and patronymic.

American Surname Generator

The American melting pot — English roots plus Hispanic, Asian and African heritage names.

Japanese Surname Generator

Japanese family names — most describe a place: rice fields, mountains, rivers.

Korean Surname Generator

Korean family names — a tiny set of one-syllable clan names covers most of the country.

Chinese Surname Generator

Chinese family names — the legendary 'Hundred Surnames', a few of which dominate.

Italian Surname Generator

Italian last names — nicknames, trades, and lots of regional variety.

Spanish Surname Generator

Spanish surnames — patronymic '-ez' names, place names, and double surnames.

French Surname Generator

French last names — first names turned surnames, plus trades and places.

Random Last Name Generator

A truly mixed bag of real last names from every origin on the site.

Fantasy Last Name Generator

Evocative last names for fantasy worlds — Ashbourne, Frostmantle, Aerendril.

See all generators →