Kaytlyn is a distinctive girls' name in United States, ranking #3837 in 2009 with 41 recorded births. The name reached its all-time peak in 1998 with 158 births ranking #1181. Since 1996, the popularity has decreased by 71.5%. In 2009, approximately 1 in every 44,802 girls born was named Kaytlyn. FALLING Recent data shows the name is currently falling.