Kierrin \ki(er)-rin\ as a boy's name is a variant of Kieran (Irish, Gaelic), and the meaning of Kierrin is "black".

The baby name Kierrin sounds like Kierron and Kierren. Other similar baby names are Korrin, Derrin, Ferrin, Jerrin, Kerrie, Kerwin, Kervin, Kieron, Kiernan, Kieren, Perrin and Terrin.