O'Hara is an Anglicized form of the Irish name Ó hEaghra. The death of the eponym is mentioned in the Annals of the Four Masters - 926. Eaghra Poprigh mac Saorghus, lord of Luighne, in Connaught ... died.
Barratt O'Hara (1882–1969), American politicianBernard O'Hara (born 1945), Irish historianCatherine O'Hara (born 1954), Canadian actressCharles O'Hara (1740–1802), British military officerDane O'Hara, New Zealand rugby league footballerDavid O'Hara (born 1965), British actorEdward O'Hara (born 1937), British politicianEdwin Vincent O'Hara (1881–1956), American prelate of the Roman Catholic ChurchÉilis Ni Dhuibhne, Elisabeth O'Hara (born 1954), Irish novelistFrank O'Hara (1926-1966), American poetGerald Patrick Aloysius O'Hara (1895—1963), American prelate of the Roman Catholic ChurchGeoffrey O'Hara (1882–1967), Canadian American composer, singer and music professorGeorge O'Hara (actor) (1899–1966), American actor and screenwriterGerry O'Hara (born 1925), British film and television directorGlen O'Hara (born 1974), British academic historianHelen O'Hara (born 1955) British musician, violinistJames G. O'Hara (1925–1989), American statesmanJamie O'Hara (footballer) (born 1986), British football playerJamie O'Hara (singer), (b. 1950), American country music singer-songwriterJean O'Hara (1913–1973), American prostituteJoan O'Hara (1930–2007), Irish actressJohn Bernard O'Hara (1862-1927), Australian poetJohn Francis O'Hara (1888–1960), American catholic cardinal and educatorJohn Henry O'Hara (1905–1970), American writerJohn Kennedy O'Hara (born 1961), American politicianKane O'Hara (c.1711–1782), Irish composerKelley O'Hara (born 1988), American footballerKelli O'Hara (born 1977), American actress and singerKid O'Hara (1875–1954), American baseball playerMaggie Blue O'Hara, Canadian actressMario O'Hara, Filipino film director, film producer and screenwriterMark O'Hara, Scottish footballerMary O'Hara (born 1935), Irish singer and harpistMary Margaret O'Hara, Canadian singer-songwriterMaureen O'Hara (1920–2015), Irish-American actressMichael O'Hara, American volleyball playerMichael O'Hara, American writer and producerMichael D. O'Hara (1910-1978), American juristShaun O'Hara (born 1977) American football playerPaige O'Hara (born 1956) American singer and actressPat O'Hara (born 1968), American football player, coachPatsy O'Hara (1957–1981), Irish Republican hunger strikerPatrick O'Hara an Irish politicianRuss O'Hara, American radio personalityTheodore O'Hara (1820–1867), American poet and Confederate colonelThomas J. O'Hara C.S.C., Ph.D., an American president of King's CollegeTom O'Hara (born 1942), American runnerValentine O'Hara (1875–1941), Irish author and authority on RussiaColonel Walter O'Hara (1789–1874), British army officer