Kayleen \ka(y)-leen\ as a girl's name is a variant of Kaylee (Gaelic) and Kaylin (American), and the meaning of Kayleen is "slender".

The baby name Kayleen sounds like Cayleen, Gayleen, Kaleen, Kaylen, Kayleena, Kaileen and Kyleen. Other similar baby names are Karleen, Katleen, Jayleen, Mayleen and Rayleen.