Katelynn \k(a)-tely-nn, kat(e)-lynn\ as a girl's name is a variant of Caitlin (Old French, Greek), Kaitlin and Katelyn (English), and the meaning of Katelynn is "pure".

The baby name Katelynn sounds like Catelynn, Katelynne, Katlynn, Katelinn and Kathlynn. Other similar baby names are Kaelynn, Kayelyn, Katelin, Katelan, Kaitlynn, Catlynn, Catelyn, Catelinn, Karlynn, Karolynn, Karilynn, Karelyn, Katelijn, Kathlyn, Karalynn, Katlynne, Katlyn, Kateline, Kathlyne, Katlyne, Katilyn, Kaylynn, Kalynn, Kaelyn and Madelynn.