Kayley is a distinctive girls' name in United States, ranking #1161 in 2011 with 211 recorded births. This places Kayley in the top 6% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has decreased by 17.6%. In 2011, approximately 1 in every 8,336 girls born was named Kayley. FALLING Recent data shows the name is currently falling.