Kaytlyn is a distinctive girls' name in United States, ranking #5479 in 2012 with 25 recorded births. This places Kaytlyn in the top 28% 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. Since 1996, the popularity has decreased by 82.6%. In 2012, approximately 1 in every 70,430 girls born was named Kaytlyn. FALLING Recent data shows the name is currently falling.