Katlynn is a distinctive girls' name in United States, ranking #909 in 1996 with 216 recorded births. This places Katlynn in the top 6% of ranked US girls' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1999 with 268 births ranking #813. In 1996, approximately 1 in every 8,116 girls born was named Katlynn. FALLING Recent data shows the name is currently falling.