O'Meara (Meara, O'Mara, Mara, Marah) is an Irish surname, anglicised from Ó Meadhra, originating in County Tipperary, and may refer to: * Andrew P. O'Meara (1907–2005), United States Army general * Barry Edward O'Meara (1786–1836), Irish surgeon * Brian O'Meara (rugby union) (born 1976), Irish rugby union footballer * Brian O'Meara (hurler) (born 1990), Irish hurler * Brian O'Meara (Mullinahone hurler) (born 1973), Irish hurler for the Tipperary senior team * Colin O'Meara (born 1963), voice actor * David O'Meara, a Canadian poet. * Dermod O'Meara, Irish physician, poet and parent of Edmund O'Meara * Edmund O'Meara (1614–1681), Irish physiologist and child of Dermod O'Meara * Edward O'Meara (1921–1992), American prelate of the Roman Catholic Church * Eileen O'Meara, American art