Katlynn is a distinctive girls' name in United States, ranking #1714 in 2006 with 122 recorded births. The name reached its all-time peak in 1999 with 268 births ranking #813. Since 1996, the popularity has decreased by 43.5%. In 2006, approximately 1 in every 15,583 girls born was named Katlynn. FALLING Recent data shows the name is currently falling.