Kaylyn is a distinctive girls' name in United States, ranking #1999 in 2021 with 97 recorded births. The name reached its all-time peak in 1997 with 462 births ranking #519. Since 1996, the popularity has decreased by 76.8%. In 2021, approximately 1 in every 16,904 girls born was named Kaylyn. STABLE Recent data shows the name is currently stable.