McKeown, McKeon, McKeone, Mac Eoghain, Mac Eóin A Gaelic surname meaning son of Eoghan (born of the yew). A sept of Sligo. In its anglicised form difficult to distinguish from Mac Eóin, meaning son of John. A surname adopted by a branch of the Scottish Bissett who settled in the Glens of Antrim during the thirteenth century. Also see Owens. In 1890 McKeown was principally to be found in Antrim, Armagh, Down, Derry and Louth, and the estimated number of bearers was 5,300. McKeon and McKeone was principally to be found in Leitrim and Louth, and the estimated number of bearers was 1,800 and 500. A total of 7,840 bearers including variants. Keon and Keown was principally found in Donegal, Down and Fermanagh (estimated bearers 806). In the United States Keown is the 9,435th most numerous surname with an estimated 2,750 bearers.
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