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O'Connor (surname)

O'Connor is a surname of Irish origin, originally meaning Ó Conchobhair ("grandson/descendant of Conchobar"). A more modern Irish spelling is Ó Conchúir.

There were at least five unrelated Ó Conchobhair families originally, located in Derry, Sligo/Roscommon ( Connachta), Offaly/Laoise ( Uí Failghe), Clare ( Corco Modhruadh) and Kerry ( Ciarraige).

For the Connacht clan see O'Connor.

O'Connor (disambiguation)

O'Connor is an Irish clan, kings of Connacht. The name was originally Ó Conchobhair, meaning ("grandson/descendant of Conchobhar").

O'Connor may also refer to:

O'Connor (band)

O'Connor is an Argentinean hard rock band founded on 1998 by Claudio O'Connor and Hernán García after leaving the band Malón.

O'Connor

O'Conor ( Middle Irish: Ó Conchubhair; Modern Irish: Ó Conchúir), is an Irish Gaelic clan based throughout Connacht but most prominently in what is today County Roscommon, County Mayo and County Sligo. The clan name originated in the 10th century as a derivative of its founder Conchobar mac Taidg Mór. They descend in the paternal line from the Connachta's Uí Briúin Ai. They were originally kings of Connacht in general and of the Síol Muireadaigh; as members of the Uí Briúin were kinsmen of the Mac Diarmata and Ó Flaithbertaigh amongst others. In the 13th century, the Normans began to make gains in Connacht; particularly the Burkes, to the cost of the O'Connors. They split into various smaller areas of power, for instance the O'Connor Don and Roe ruled in County Roscommon while the Ó Conchobhair Sligigh ruled in County Sligo. The current O'Conor Don is Desmond O'Conor Don (b. 22 September 1938) who lives in Rotherfield, East Sussex in England.