Kayley is a distinctive girls' name in United States, ranking #841 in 2007 with 338 recorded births. The name reached its all-time peak in 1999 with 461 births ranking #548. Since 1996, the popularity has increased by 32.0%. In 2007, approximately 1 in every 5,688 girls born was named Kayley. FALLING Recent data shows the name is currently falling.