Keen \keen\ as a boy's name is a variant of Keane (Irish, Gaelic, Old English) and Keenan (Irish, Gaelic), and the meaning of Keen is "fighter; sharp, keen wit or eye; ancient".

The baby name Keen sounds like Kean, Keene, Ken, Kenn and Keon. Other similar baby names are Deen, Keer, Kern, Keven and Kees.