Kaylyn is a distinctive girls' name in United States, ranking #1942 in 2019 with 101 recorded births. The name reached its all-time peak in 1997 with 462 births ranking #519. Since 1996, the popularity has decreased by 75.9%. In 2019, approximately 1 in every 16,610 girls born was named Kaylyn. STABLE Recent data shows the name is currently stable.