TheNameDBO'Brien
PatronymicMeaning
Descendant of Brien, derived from the Gaelic 'Brien' meaning 'noble' or 'high.'
Etymology
The surname comes from the Irish 'Ó Briain,' where 'Ó' means 'descendant of' and Brien is a personal name. Brien likely derives from Celtic roots meaning 'noble' or 'of high status.'
About the O'Brien Surname
O'Brien is one of Ireland's most prominent surnames, originating from the Dalcassian dynasty in Munster. The O'Brien family held considerable power and influence throughout medieval and early modern Ireland.
Distribution
Primarily found in Munster, particularly County Clare and County Limerick, with significant populations in the United States, Canada, Australia, and the United Kingdom.