Kayley is a distinctive girls' name in United States, ranking #733 in 2006 with 383 recorded births. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has increased by 49.6%. In 2006, approximately 1 in every 4,964 girls born was named Kayley. FALLING Recent data shows the name is currently falling.