Kaytlyn is a distinctive girls' name in United States, ranking #1391 in 2001 with 137 recorded births. This places Kaytlyn 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 1998 with 158 births ranking #1181. In 2001, approximately 1 in every 13,143 girls born was named Kaytlyn. FALLING Recent data shows the name is currently falling.