Old Irish Family Names: A Journey Through History and Heritage

Discover the rich tapestry of Irish history and heritage through its enduring family names. These names, passed down through generations, tell tales of ancient clans, mythical figures, and the enduring spirit of the Irish people. From Gaelic origins to anglicized forms, explore the fascinating meanings behind these surnames, and uncover the stories they hold.
1. **Ó Briain:** Descendant of Brian, a powerful Irish king, often associated with the legendary Brian Boru.
2. **Ó Néill:** Descendant of Niall of the Nine Hostages, a legendary Irish high king who is said to have brought Christianity to Ireland.
3. **Ó Cróinín:** Descendant of Croinin, a common Irish name with meanings like "little crow" or "dark haired".
4. **Ó Súilleabháin:** Descendant of Súilleabháin, meaning "little eye" or "dark-eyed one".
5. **Ó Conchobhair:** Descendant of Conchobhar, a name meaning "lover of hounds" or "warrior".
6. **Ó Ceallaigh:** Descendant of Ceallach, a name meaning "bright" or "vigorous".
7. **Ó Dúill:** Descendant of Dúill, meaning "dark" or "black".
8. **Ó Maolchonaire:** Descendant of Maolchonaire, meaning "bald-headed" or "shaven-headed".
9. **Ó Maoláin:** Descendant of Maolán, meaning "bald" or "shaven-headed".
10. **Ó Raghallaigh:** Descendant of Raghallach, meaning "fierce" or "ardent".
11. **Ó Dálaigh:** Descendant of Dálach, meaning "generous" or "kind".
12. **Ó Mathghamhna:** Descendant of Mathghamhn, meaning "bear" or "strong".
13. **Ó Cléirigh:** Descendant of Cléirigh, meaning "clerk" or "scribe".
14. **Ó hÉigeartaigh:** Descendant of Éigeartach, meaning "vigorous" or "active".
15. **Ó hUiginn:** Descendant of Uiginn, meaning "descendant of Owen".
16. **Ó Cearbhaill:** Descendant of Cearbhall, meaning "dark-haired" or "black-haired".
17. **Ó Murchú:** Descendant of Murchú, meaning "sea warrior" or "sea king".
18. **Ó Flaithbheartaigh:** Descendant of Flaithbheartach, meaning "noble" or "powerful".
19. **Ó Cadhlaigh:** Descendant of Cadhlach, meaning "gentle" or "kind".
20. **Ó Nuallain:** Descendant of Nuallain, meaning "little wolf" or "wolf cub".
21. **Ó hAodha:** Descendant of Aodh, meaning "fire" or "passion".
22. **Ó Muircheartaigh:** Descendant of Muircheartach, meaning "sea warrior" or "sea king".
23. **Ó Fearghail:** Descendant of Fearghal, meaning "man of courage" or "brave man".
24. **Ó Domhnaill:** Descendant of Domhnall, meaning "world ruler" or "world conqueror".
25. **Ó Faoláin:** Descendant of Faolán, meaning "wolf cub" or "little wolf".
26. **Ó Cíosóig:** Descendant of Cíosóg, meaning "small chest" or "small box".
27. **Ó Gallchobhair:** Descendant of Gallchobhair, meaning "stranger" or "foreigner".
28. **Ó Longaigh:** Descendant of Longaigh, meaning "ship" or "boat".
29. **Ó Ruairc:** Descendant of Ruairc, meaning "red" or "ruddy".
30. **Ó Séaghdha:** Descendant of Séaghdha, meaning "victory" or "conquest".
31. **Ó Buachalla:** Descendant of Buachalla, meaning "herdsman" or "shepherd".
32. **Ó Laoghaire:** Descendant of Laoghaire, meaning "calf" or "young bull".
33. **Ó hAinle:** Descendant of Ainle, meaning "bright" or "radiant".
34. **Ó Coileáin:** Descendant of Coileán, meaning "little dog" or "puppy".
35. **Ó Donnabháin:** Descendant of Donnabhán, meaning "brown" or "dark".
36. **Ó hAileasa:** Descendant of Aileasa, meaning "noble" or "powerful".
37. **Ó Maoileacháin:** Descendant of Maoileachán, meaning "bald" or "shaven-headed".
38. **Ó hEochaidh:** Descendant of Eochaidh, meaning "horse" or "mare".
39. **Ó Gormáin:** Descendant of Gormán, meaning "blue" or "dark".
40. **Ó Conchúir:** Descendant of Conchúir, meaning "lover of hounds" or "warrior".