O'Connor

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This article is about O'Connor surname. For other uses, see O'Connor (disambiguation).

O'Connor is a surname of Irish origin, originally meaning Ó Conchobhair ("grandson/descendant of Conchobhar").

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).

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