Kiley is a distinctive boys' name in United States, ranking #12495 in 2005 with 5 recorded births. The name reached its all-time peak in 1999 with 19 births ranking #3919. Since 1996, the popularity has decreased by 72.2%. In 2005, approximately 1 in every 399,429 boys born was named Kiley. FALLING Recent data shows the name is currently falling.