Kaylyn is a distinctive girls' name in United States, ranking #1745 in 2018 with 118 recorded births. The name reached its all-time peak in 1997 with 462 births ranking #519. Since 1996, the popularity has decreased by 71.8%. In 2018, approximately 1 in every 14,410 girls born was named Kaylyn. STABLE Recent data shows the name is currently stable.