O'Connor (surname)
O'Connor or O'Conor is a surname of Irish origin, originally meaning Ó Conchobhair. A more modern Irish spelling is Ó Conchúir.
There were at least five unrelated Ó Conchobhair families originally, located in Derry, Sligo/Roscommon, Offaly/Laoise, Clare and Kerry.
For the Connacht clan see O'Conor.
List of people with the surname O'Connor
Medieval kings
- Cathal Crobhdearg Ua Conchobair, King of Connacht
- Conchobar Máenmaige Ua Conchobhair last independent King of Connacht
- Feidhlim Mac Aoidh Ó Conchobhair, 1293–1316, King of Connacht
- Ruaidhrí Ó Conchobhair, last High King of Ireland
- Toirdealbhach Mac Ruaidhrí Ó Conchobhair, High King of Ireland
Arts
- Brian O'Connor, American bassist
- Caroline O'Connor, Australian singer, dancer and actress
- Carroll O'Connor, American actor
- Celeste O'Connor, American actress
- Claudio O'Connor, Argentinian singer
- Des O'Connor, British singer and TV Comedian
- Donald O'Connor, American actor and entertainer
- Elmo O'Connor, American rapper and singer known as BONES, founder of TeamSESH.
- Ella Marija Lani Yelich-O'Connor, more known as Lorde, New Zealand singer-songwriter
- Flannery O'Connor, American author
- Frank O'Connor, Irish author
- Frank O'Connor, American actor, director, and screenwriter
- Frank O'Connor , American actor and husband of Ayn Rand
- Gavin O'Connor, American film director, screenwriter, producer, playwright and actor
- Gavin O'Connor, Irish actor
- Hazel O'Connor, English singer and actress
- James O'Connor, American drummer
- Jim O'Connor, American actor
- Dr John William O'Connor PhD, Psychologist, Award Winning Author
- Joe O'Connor, American actor
- Josef O'Connor, artist
- Joseph O'Connor, Irish novelist
- Mark O'Connor, American fiddler
- Raymond O'Connor, American character actor
- Renee O'Connor, American actress
- Ruairi O'Connor, Irish actor
- Sinéad O'Connor, Irish singer-songwriter
- Una O'Connor , Irish character actress
- O'Connor, Argentinian band
Law and politics
- Arthur O'Connor , United Irishman and later a general in Napoleon's army
- Basil O'Connor, American lawyer, co-founded National Foundation for Infantile Paralysis with Franklin D. Roosevelt
- Batt O'Connor, Irish builder, who worked for the revolutionary Michael Collins
- Bob O'Connor , Mayor of Pittsburgh, Pennsylvania
- Dennis O'Connor, Associate Chief Justice of Ontario
- Edmund O'Connor, President pro tem of the NY State Senate 1895
- Feargus O'Connor, Irish Chartist leader
- Frank D. O'Connor, New York politician
- Frank O'Connor, Canadian politician
- Gavan O'Connor, Australian politician
- Gordon O'Connor, Canadian politician
- James O'Connor , American politician
- Jeremiah F. O'Connor, American politician
- John O'Connor , Canadian politician
- Joseph O'Connor, Irish author
- Joseph O'Connor, Irish revolutionary, soldier and politician
- Joseph O'Conor, Irish actor
- Sir Kenneth O'Connor, British Judge
- Larry O'Connor, Canadian politician
- Máireag Bean Uí Conchobhair Fáilghe, Queen, and patron of the arts
- Maureen O'Connor, Lieutenant Governor of Ohio and member of the Ohio Supreme Court
- Maureen O'Connor , Mayor of San Diego, California, from 1985—1992
- Matt O'Connor, founder of the fathers' rights pressure group Fathers 4 Justice
- Michael O'Connor , Australian politician
- Patrick J. O'Connor, Chicago alderman
- Ray O'Connor, 22nd Premier of Western Australia, convicted fraudster and Australian rules footballer
- Richard O'Connor , Australian politician and jurist
- Sandra Day O'Connor, Associate Justice of the United States Supreme Court
- T.P. O'Connor, Irish journalist and politician
- Terence O'Connor, British politician
Military
- Bryan D. O'Connor, astronaut
- Francis Burdett O'Connor was an officer in the Irish Legion of Simón Bolívar's army in Venezuela.
- Luke O'Connor, first recipient of the Victoria Cross and British General
- Richard O'Connor, British General
- Rory O'Connor, Irish revolutionary soldier, who commanded Four Courts garrison
Religion
- Denis T. O'Connor Roman Catholic Archbishop of Toronto
- James O'Connor , Bishop of the Roman Catholic Diocese of Omaha
- John Joseph O'Connor, Roman Catholic Archbishop of New York City
- Michael O'Connor, Bishop of the Roman Catholic Diocese of Pittsburgh
- Patrick Edward O'Connor, New Zealand Roman Catholic priest
- William Patrick O'Connor, Bishop of the Roman Catholic Diocese of Superior
Science and academia
- Annette O'Connor, professor and researcher in health care
- C. Y. O'Connor, Irish engineer
- David O'Connor, Australian egyptologist
- J. Dennis O'Connor, American academic administrator
- Johnson O'Connor, American psychometrician
- Michael Patrick O'Connor, American linguist
- Thomas H. O'Connor, American historian
Sport
- Adrian O'Connor, Irish backstroke swimmer
- Cian O'Connor, Irish equestrian
- Bernard O'Connor, Gaelic footballer
- Brian O'Connor, University of Virginia baseball head coach
- Christy O'Connor Jnr, Irish golfer
- Christy O'Connor Snr, Irish golfer; uncle of Christy Jnr
- Dan O'Connor , Canadian baseball player
- David O'Connor , American equestrian
- Denise O'Connor, American Olympic fencer
- Donncha O'Connor, Cork All Ireland Senior Medalist
- Gary O'Connor, Scottish football goalkeeper
- Garry O'Connor, Scottish footballer
- James O'Connor , Irish footballer
- James O'Connor , British footballer
- James O'Connor , Australian rugby union player
- Jamesie O'Connor, Irish hurler
- Jennifer O'Connor , Australian netball player
- Joe O'Connor english snooker player
- Karen O'Connor, American equestrian
- Mary O'Connor , New Zealand long-distance runner
- Michael O'Connor , Australia rugby union and rugby league player
- Michael O'Connor, Northern Ireland football player
- Michael O'Connor , Major League Baseball player
- Patrick O'Connor, Jamaican sprinter
- Pat O'Connor , Formula One driver
- Pat O'Connor , American football player
- Paul O'Connor, Irish Gaelic footballer
- Paul O'Connor, Irish skier
- Peter O'Connor , Irish athlete
- Red O'Connor, American football player
- Tommy O'Connor, Irish footballer
- Tony O'Connor, Irish rower
- William Joseph O'Connor, Canadian professional oarsman
Other
- Brendan O'Connor, multiple people
- Daniel O'Connor, multiple people
- Erin O'Connor, British supermodel
- Liam O'Connor, multiple people
- Terry O'Connor, multiple people
- Tom O'Connor, multiple people
Similar names
- O'Conner
- Conner
- Connor
- Connors
- Conor
- O'Conor Don
- O Connor Sligo