A Complete List of Gaelic Last Names and Meanings

Gaelic last names offer a fascinating glimpse into Celtic heritage and history. Here’s a selection of popular Gaelic surnames and their meanings:

1. Murphy (Ó Murchadha): Sea warrior
2. Kelly (Ó Ceallaigh): Bright-headed
3. O’Sullivan (Ó Súilleabháin): Dark-eyed
4. Walsh (Breathnach): Welshman
5. O’Brien (Ó Briain): Descendant of Brian
6. Ryan (Ó Riain): Little king
7. O’Connor (Ó Conchobhair): Descendant of Conchobhar
8. O’Neill (Ó Néill): Descendant of Niall
9. O’Reilly (Ó Raghallaigh): Descendant of Raghallach
10. Doyle (Ó Dubhghaill): Dark stranger

These names often reflect occupations, physical characteristics, or ancestral lineage. Many Gaelic surnames begin with “O'” (meaning “descendant of”) or “Mac” (meaning “son of”).