Kailyn is a distinctive girls' name in United States, ranking #1425 in 2022 with 158 recorded births. This places Kailyn in the top 8% of ranked US girls' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2011 with 793 births ranking #397. Since 1996, the popularity has decreased by 46.4%. In 2022, approximately 1 in every 10,372 girls born was named Kailyn. FALLING Recent data shows the name is currently falling.