Kayleigh is a form of the English Kaila.
Kayleigh is also a spelling variant of the English and Irish Kayley.
Kayleigh is rather popular as a baby girl name. The name has been growing in popularity since the 1980s; prior to that, it was of only very modest use. Its usage peaked in 2009 with 0.072% of baby girls being named Kayleigh. It was #228 in rank then. In 2018, it ranked at #451 with a usage of 0.038%, and it was the most popular among all girl names in its family. Kayleigh was twice as popular as the next ranked name, Kaylie, in 2018.
Baby names that sound like Kayleigh include Kailey, Kaili, Kailie, Kaillie, Kaily, Kailye, Kaleigh, Kaley, Kalie, Kaylee, Kayley, Kayli, Kaylie, Kaylieh, Kayly, Keighley, Caeley, Caeli, Caelie, and Cailey.
† English pronunciation for Kayleigh: K as in "key (K.IY)" ; EY as in "ate (EY.T)" ; L as in "lay (L.EY)" ; IY as in "eat (IY.T)"