is eileen an irish name?
Name of the Week: Eileen. Origin: Eileen and Aileen are anglicised forms of the Irish Gaelic names Eibhilín and Aibhilín (or, more commonly today, Eibhlín). Both Eibhilín and Aibhilín are variants of Avelina, a diminutive form of the Old Germanic name Avila, making Eileen a cousin to Evelyn.