Kiley is a moderately popular girls' name in United States, ranking #307 in 2008 with 1,089 recorded births. This places Kiley in the top 1% of ranked US girls' names for the year. Its actual usage is classified as Moderately Popular. The name reached its all-time peak in 2008 with 1,089 births ranking #307. Since 1996, the popularity has increased by 171.6%. In 2008, approximately 1 in every 1,736 girls born was named Kiley. STABLE Recent data shows the name is currently stable.