Meaning

origin* As an Irish and Scottish Gaelic surname, from Ó Catháin (“descendant of Cathán”), Mac Catháin (“son of Cathán”), a name meaning "warrior," from cath (“battle”). Compare O'Kane and Keane. * As an English surname, variant of Cane. * As a Jewish surname, variant of Kahane and Kanne. * As a German surname, Americanized from Köhn, Kohn. * As a Finnish surname, Americanized from Nykänen.

Etymology from Wiktionary, CC BY-SA 3.0