Katlynn is a distinctive girls' name in United States, ranking #1210 in 2002 with 167 recorded births. The name reached its all-time peak in 1999 with 268 births ranking #813. Since 1996, the popularity has decreased by 22.7%. In 2002, approximately 1 in every 10,759 girls born was named Katlynn. FALLING Recent data shows the name is currently falling.