Frank O'Connor (disambiguation)
Frank O'Connor was an Irish author.
Frank O'Connor may also refer to:
- Frank O'Connor (director), American actor, director and screenwriter
- Frank O'Connor (basketball), Irish Olympic basketball player
- Frank O'Connor (actor, born 1897), American actor, rancher, and painter, husband of Ayn Rand
- Frank D. O'Connor, American politician from New York City
- Frank O'Connor (baseball), American baseball pitcher
- Frank Patrick O'Connor, Canadian politician, businessman, and founder of Laura Secord Chocolates
- Frank O'Connor (rugby league), Australian rugby league footballer
- SS Frank O'Connor, a 1919 shipwreck in Lake Michigan
- Frank O'Connor (public servant), senior Australian public servant
- Frank O'Connor (Australian rules footballer), Australian rules footballer for Melbourne
- Raymond O'Connor (footballer), also known as Frank, English footballer