Kaylyn is a distinctive girls' name in United States, ranking #1646 in 2017 with 131 recorded births. The name reached its all-time peak in 1997 with 462 births ranking #519. Since 1996, the popularity has decreased by 68.7%. In 2017, approximately 1 in every 13,175 girls born was named Kaylyn. STABLE Recent data shows the name is currently stable.