Kayllie \ka(yl)-lie\ as a girl's name is a variant of Kalila (Arabic), and the meaning of Kayllie is "darling, beloved".

The baby name Kayllie sounds like Kallie, Kaylie and Keyllie. Other similar baby names are Baylie, Baillie, Callie, Kalli, Kallee, Kalle, Karlie, Kaysie, Kaycie, Kaylee, Kailie, Caylie, Lallie, Gaylle, Haylie, Hallie, Kalie, Karalie, Kaylin, Kaylla, Kayle, Kaylley, Kayli, Kaylene, Kaylei, Kaelie, Keylie, Kellie, Kylie, Mallie, Maillie, Phyllie, Sallie, Tallie, Vallie and Wallie.