O'Leary
O'Leary is a family name that may refer to:
- Brendan O'Leary (* 1958), Irish political scientist
- Ciaran O'Leary (born 1973), Irish poker player
- Cornelius O'Leary (1927-2006), Irish historian and political scientist
- Daniel Florence O'Leary (1801-1854), British diplomat
- David O'Leary (Bishop) (1880–1958), South African religious
- David O'Leary (soccer player) (born 1958), Irish soccer player and coach
- David O'Leary (tennis player) (born 1991), Irish tennis player
- De Lacy O'Leary (1872–1957), British Arabist and Semitist
- Denis O'Leary (1863–1943), American politician
- Edward Cornelius O'Leary (1920–2002), American clergyman, Bishop of Portland
- Hazel R. O'Leary (* 1937), American politician
- Humphrey O'Leary (1886–1953), New Zealand attorney, Chief Justice of New Zealand
- James A. O'Leary (1889–1944), American politician
- Jason O'Leary (* 1978), Canadian ice hockey coach
- John O'Leary (1830–1907), Irish politician and co-founder of the Fenians
- Joseph V. O'Leary (1890–1964), American politician
- Marian O'Leary (* around 1954), Irish EU official
- Mark O'Leary (* 1969), Irish jazz and improvisation musician
- Marrissa O'Leary (1957-2018), American actress and television producer
- Matt O'Leary (born 1987), American actor
- Meghan O'Leary (* 1984), American rower
- Michael O'Leary (politician) (1936-2006), Irish politician
- Michael O'Leary (actor) (born 1958), American actor
- Michael O'Leary (businessman) (born 1961), Irish businessman and aviation manager
- Noreen O'Leary (1957-2016), American journalist
- Pat O'Leary (* ≈1955), American jazz musician
- Peter O'Leary (* 1972), New Zealand football referee
- Pierce O'Leary (born 1959), Irish football player
- Sammy O'Leary (* 2003), German actor on television
- Síofra O'Leary (* 1968), Irish judge at the European Court of Human Rights
- Thomas Mary O'Leary (1875–1949), American clergyman, Bishop of Springfield
- Tomás O'Leary (born 1983), Irish rugby player
- William O'Leary (born 1957), American actor
O'Leary refers to:
- O'Leary (Prince Edward Island) , small town in Prince County in the Canadian province of Prince Edward Island
- O'Leary Peak , mountain in the Ross Dependency, Antarctica
- O'Leary Ridges , mountain ridges in Mac Robertson Land, Antarctica
See also:
