Catlyn \c(a)-tl-yn, cat-lyn\ as a girl's name is a variant of Caitlin (Old French, Greek), and the meaning of Catlyn is "pure". See also Katherine.

The baby name Catlyn sounds like Catlynn, Catlin, Catelyn, Caitlyn and Katlyn. Other similar baby names are Cailyn, Caelyn, Caylyn, Calyn and Carlyn.