Ó Laoghaire is a surname of Irish origin, commonly associated with the Gaelic name Ó Laoghaire, which means "descendant of Laoghaire." The name is linked to several historical figures in Ireland, particularly in the province of Munster. The Ó Laoghaire family has a rich heritage, often connected to the Cork region. Members of this family have played significant roles in Irish history, culture, and literature, contributing to the preservation of the Irish language and traditions.