Kitlyn \k(i)-tl-yn, kit-lyn\ as a girl's name is a variant of Katelyn (English) and Kitty. See for origin and meaning of Kitlyn.
The baby name Kitlyn sounds like Kaitlyn and Katlyn. Other similar baby names are Kaitlynn, Kaitlin, Kaitlan, Catlyn, Caitlyn, Karlyn, Kathlyn, Kamlyn, Katlynn, Katlin, Katlyne, Katilyn, Kaylyn, Kalyn, Kailyn, Kaelyn, Keelyn, Kellyn and Kimblyn.