O’Kane, ó Catháin A Gaelic surname meaning descendant of Cathán, which personal name is derived from cath ‘a battle’ perhaps meaning ‘battler’. A sept of the Cineál Eoghain, who were the leading sept of Keenaght in Derry. They were dispossessed during the Plantation of Ulster. A sept of the Uí Fiachrach in Galway. In 1890 Kane was the seventy-second most numerous surname, the estimated number of bearers was 9,700 and the surname was chiefly found in Antrim, Derry and Dublin. In the United States Kane is the 746th most numerous surname with an estimated 44,000 bearers. It is numerous in the states of Delaware, New Jersey, New York, and Pennsylvania.
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