Ó hAodha is an Irish surname that originates from the Gaelic name "Ó hEodhusa," meaning "descendant of Eodhusa." The name is associated with a family that historically held land and influence in Ireland, particularly in the province of Munster. The Ó hAodha family is part of the larger group of Gaelic Irish surnames, which often reflect lineage and ancestry. Variations of the name can be found in different regions, and it is sometimes anglicized as "Hugh" or "Hoddy." The name is still present in modern Ireland, representing a connection to the country's rich cultural heritage.