Kayley is a distinctive girls' name in United States, ranking #734 in 2002 with 332 recorded births. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has increased by 29.7%. In 2002, approximately 1 in every 5,412 girls born was named Kayley. FALLING Recent data shows the name is currently falling.