Keelyn \ke(el)-yn\ as a girl's name is a variant of Keely (Gaelic), and the meaning of Keelyn is "slender, pretty".

The baby name Keelyn sounds like Keelin, Keelan, Kaelyn and Kellyn. Other similar baby names are Keela, Caelyn, Kayelyn, Katelyn, Karlyn, Karelyn, Daelyn, Delyn, Geelan, Jaelyn, Kamlyn, Keryn, Kitlyn, Katlyn, Kaylyn, Kalyn, Kailyn, Kaelynn, Kaelin, Keelie, Keelia, Keeli, Keeley, Kealy, Kellen, Kellan, Kelly, Kellye, Kerryn, Kerilyn, Kevyn, Raelyn and Suelyn.