Kayley is a distinctive girls' name in United States, ranking #669 in 2001 with 375 recorded births. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has increased by 46.5%. In 2001, approximately 1 in every 4,801 girls born was named Kayley. FALLING Recent data shows the name is currently falling.