Kayley is a distinctive girls' name in England & Wales, ranking #565 in 2007 with 64 recorded births. The name reached its all-time peak in 1996 with 127 births ranking #293. Since 1996, the popularity has decreased by 49.6%. In 2007, approximately 1 in every 4,783 girls born was named Kayley. FALLING Recent data shows the name is currently falling.