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

The baby name Kayli sounds like Kalli, Kayla, Kali, Kahli, Kaylie, Kayle, Kaylei, Kaili, Kaeli and Kyli. Other similar baby names are Karli, Kaysi, Kayci, Kaylin and Kaydi.