Kaytlyn is a distinctive girls' name in United States, ranking #3574 in 2011 with 44 recorded births. This places Kaytlyn in the top 18% 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 69.4%. In 2011, approximately 1 in every 39,973 girls born was named Kaytlyn. FALLING Recent data shows the name is currently falling.