Kayley is a distinctive girls' name in United States, ranking #693 in 2003 with 377 recorded births. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has increased by 47.3%. In 2003, approximately 1 in every 4,846 girls born was named Kayley. FALLING Recent data shows the name is currently falling.