Robert O'Neill or O'Neil may refer to: Robert J. O'Neill (born 1976), US Navy SEAL who claims to have fatally shot Osama bin Laden Robert O'Neill (footballer) (1883–1961), Australian rules footballer Robert O'Neill (historian) (1936–2023), Australian historian and academic Robert E. O'Neill (fl. 2010s), American attorney Robert Torrens O'Neill (1845–1910), Irish politician who served in the UK House of Commons Robert M. O'Neil (1934–2018), American lawyer and president of the University of Virginia Bob O'Neil, American football player Bob O'Neill (1905–1978), Australian rules footballer Robert John O'Neill (bishop), retired Episcopal bishop of Colorado Robert Vincent O'Neil (1930–2022), American screenwriter, film director, and playwright Mr. Robert O'Neil, a Teenage Mutant Ninja Turtles character