Kayley is a distinctive girls' name in United States, ranking #802 in 1997 with 259 recorded births. This places Kayley in the top 5% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1999 with 461 births ranking #548. In 1997, approximately 1 in every 6,721 girls born was named Kayley. FALLING Recent data shows the name is currently falling.