Kiley is an attractive unisex given name of Irish origin, derived from the ancient Irish name Caeligh, which means "slender, fair-haired". It gained popularity in the United States during the mid-20th century and has since become a common choice for parents seeking a unique yet approachable name for their child. The name Kiley is often associated with strength, elegance, and independence due to its historical roots and contemporary usage. It can be spelled various ways, such as Kyleigh, Kylie, or Killian, depending on regional preferences and individual tastes.
The name Kiley experienced significant popularity between 1970 and 1983, with peaks of 80 births in 1971 and 71 births in 1972. However, its prevalence steadily declined afterwards, dropping to single digits by the year 2000. The total number of babies named Kiley from 1968 to 2016 is 1097.