Origin of the name Kiley: Transferred use of the Irish surname, which is a variant of O'Kiely. The name is from the Gaelic O'Cadhla (descendant of Cadhla), which is from cadhla (graceful, beautiful).
Kylee is a spelling variation of Kylie. There are two possible origins of the name Kylee. The first suggests that Kylee is a recent coinage, taken from the Celtic male name Kyle which comes from the Gaelic word “caol†meaning 'slender'.
Meanings and history of the name Kyleigh: | Edit. Graceful; Beautiful. It also derived from a Noongar (an Australian aboriginal word) meaning Boomerang. In Hawaiian it means Beautiful Spirit. Its Gaelic meaning is Handsome or Beautiful.