Catelyn \c(a)-tel-yn, cat(e)-lyn\ as a girl's name is a variant of Caitlin (Old French, Greek), and the meaning of Catelyn is "pure".

The baby name Catelyn sounds like Katelyn, Catlyn, Catelynn and Catelan. Other similar baby names are Caelyn, Cailyn, Caelan, Kayelyn, Katelynn, Katelin, Katelan, Caylyn, Cayelin, Catlynn, Catlin, Catelinn, Cateline, Calyn, Caitlyn, Caelin, Caralyn, Carlyn, Carolyn, Karelyn, Carilyn, Cathlyne, Cathelin, Catalin, Daelyn, Kathlyn, Katlyn, Katilyn, Kaelyn and Madelyn.