Kieren \ki(e)-ren\ as a boy's name is a variant of Kieran (Irish, Gaelic), and the meaning of Kieren is "black".
The baby name Kieren sounds like Kierren and Kieron. Other similar baby names are Kienen, Airen, Biren, Koren, Jeren, Keen, Keegen, Kienan, Keenen, Kerem, Kern, Kirwen, Keven, Kiran, Kierron, Kierrin and Kiernan.