Kailyn \ka(il)-yn\ as a girl's name is a variant of Kaylin (American). See for meaning of Kailyn.

The baby name Kailyn sounds like Cailyn, Kaylyn, Kalyn, Kailin, Kailan and Kaelyn. Other similar baby names are Kaitlyn, Karlyn, Karilyn, Kamlyn, Katlyn and Katilyn.