Kinlen is an Irish surname, a variant of Ó Caoindealbháin, Ó Caoinleáin, Ó Conalláin, Conlon, Connellan, Quinlan and Quinlivan. Notable people with this name include Dermot Kinlen, Irish Inspector of Prisons Leo Kinlen, British cancer researcher John Kinlen murdered in 1816 in Firhouse, Ireland References Surnames of Irish origin