Descendant of Brian; noble, high, or strength
Obrien is an anglicized form of the Irish surname Ó Briain, meaning 'descendant of Brian.' The name Brian is thought to derive from the Old Celtic root 'bre,' meaning hill or high, signifying nobility and strength.
Fewer than 5 boys were named Obrien in 2025.
US births per 5-year period, 1990–present (SSA data).
Jamaican professional soccer player
The mysterious inner party member and antagonist · 1984
