Last names are like threads that weave together our family history, connecting us to those who came before us. Many of us may have roots that reach beyond our current homes, and surnames are a fantastic way to explore our ancestry. Thanks to a rich history of migration, Irish last names are found worldwide. You might recognize a few famous ones (think Conan O’Brien or the Kennedys), but there are many others steeped in Ireland’s clan traditions that highlight the significance of family ties.
Check out this curated list of popular Irish surnames, including their Irish spellings and meanings. If your family name is on this list, it’s the perfect opportunity to reconnect with your heritage!
Notable Irish Last Names
- Murphy
– Irish spelling: Ó Murchadha
– Meaning: Descendant of Murchadh, a warrior of the sea. - O’Brien
– Irish spelling: Ó Briain
– Meaning: Descendant of Brian Boru, a notable High King of Ireland. - Kennedy
– Irish spelling: Ó Cinnéide
– Meaning: Descendant of Cennétig Mac Lorcáin, father of Brian Boru. - O’Reilly
– Irish spelling: Ó Raghallaigh
– Meaning: Descendant of Raghallach, a king from Connacht. - O’Neill
– Irish spelling: Ó Néill
– Meaning: Descendant of Niall Noigiallach, an Irish monarch. - Smith/McGowan
– Irish spelling: Mac Gabhann
– Meaning: Son of the blacksmith. - O’Rourke
– Irish spelling: Ó Ruairc
– Meaning: Descendant of Ruarc, King of Bréifne. - Walsh
– Irish spelling: Breathnach
– Meaning: Welshman. - Murray
– Irish spelling: Ó Muireadhaigh
– Meaning: Descendant of Muireadhaigh, a mariner. - Collins
– Irish spelling: Ó Coileáin
– Meaning: Descendant of the young warrior or hound. - Sheeran
– Irish spelling: Ó Síorán
– Meaning: Descendant of Sírín. - O’Sullivan
– Irish spelling: Ó Súilleabháin
– Meaning: Descendant of the dark-eyed one. - … [the list continues] …
- Barry
– Irish spelling: O’ Baire
– Meaning: Fair-headed or sharp. - Campbell
– Irish spelling: Caimbeul
– Meaning: Crooked mouth.
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In summary, Irish last names carry a legacy that connects us to our ancestors. Whether you’re considering a baby name or simply exploring your lineage, these surnames offer a glimpse into the rich tapestry of Irish history.