Ó Muircheartaigh is a surname of Irish origin, commonly associated with the Gaelic nobility. It translates to "descendant of Muircheartach," with Muircheartach meaning "sea warrior." The name is primarily linked to the province of Munster in Ireland, where it has historical significance. The Ó Muircheartaigh family has contributed to various aspects of Irish culture, including literature and sports. Members of this lineage have been involved in the Gaelic games, particularly hurling and football, showcasing their commitment to preserving Irish traditions and heritage.