Kyley is an unisex given name of American origin, derived from the male name Kyle which itself is derived from the Scottish surname Kyle, meaning "narrow channel" or "strait". The name gained popularity in the United States during the late 20th century and has since been used for both boys and girls.
The name Kyley experienced a peak in popularity from the late 1980s to the mid-1990s, with over 50 births per year between 1988 and 1996, and reaching its highest point with 74 births in 2002. However, since then, its popularity has steadily declined, with only 7 or fewer births recorded each year from 2010 onwards. In total, the name Kyley has been given to 1588 newborns between 1978 and 2023.