Kaylee \ka(y)-lee\ as a girl's name is pronounced KAY-lee. It is of Gaelic origin, and the meaning of Kaylee is "slender". From Caollaidhe. Variant of Kayla with the popular -ley ending, much favored in spelling variants. May also be considered a combination of Kay with Lee. See also Cayla and Kaylin.
Kaylee has 27 variant forms: Caleigh, Cayleigh, Cayley, Ceili, Kaelee, Kaeleigh, Kaeley, Kaeli, Kaelie, Kailee, Kaileigh, Kailey, Kaili, Kalee, Kaleigh, Kaley, Kalie, Kaylea, Kayleen, Kaylei, Kayleigh, Kaylene, Kayley, Kayli, Kaylie, Kaylleigh and Kaylley.