Ó hEaghra is an Irish surname that originates from the Gaelic name "Ó hEaghra," meaning "descendant of Eaghra." The name is associated with a family lineage in Ireland, particularly in the province of Munster. The Ó hEaghra family has historical ties to the Gaelic nobility and is part of the broader Irish heritage. Like many Irish surnames, it reflects the rich cultural and genealogical history of the country, often linked to specific regions and clans.