Kayley is a moderately popular girls' name in England & Wales, ranking #356 in 1998 with 94 recorded births. The name reached its all-time peak in 1996 with 127 births ranking #293. Since 1996, the popularity has decreased by 26.0%. In 1998, approximately 1 in every 3,076 girls born was named Kayley. FALLING Recent data shows the name is currently falling.