Kayley \ka(y)-ley\ as a girl's name (also used as boy's name Kayley), is a variant of Cayla (Irish, Gaelic) and Kaylee (Gaelic), and the meaning of Kayley is "slim and fair; slender". See also Kayla.

The baby name Kayley sounds like Kalley, Kaley, Kahley, Kailey, Cayley, Kayle, Kaylley, Kaylei, Kaylea, Kaeley, Keyley and Kyley. Other similar baby names are Bayley, Kaysey, Kaycey, Hayley, Karley and Kaylen.