O'Sullivan

Meaning

Descendant of Súilleabháin, derived from the Gaelic 'súil' (eye) and 'dubh' (dark), meaning 'dark-eyed.'

Etymology

The surname originates from the Irish 'Ó Súilleabháin,' where 'Ó' denotes 'descendant of.' Súilleabháin combines 'súil' (eye) and 'dubh' (dark), creating a descriptive personal name.

About the O'Sullivan Surname

O'Sullivan is one of Ireland's most common surnames, with strong roots in Munster, particularly in Cork and Kerry. The O'Sullivan family was one of the most powerful clans in Munster throughout medieval times.

Distribution

Primarily found in Munster, particularly in County Cork and County Kerry, with large populations in the United States, Canada, Australia, and the United Kingdom.

People with the O'Sullivan Surname