Katilynn is a distinctive girls' name in United States, ranking #4620 in 2001 with 26 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #4144. Since 1996, the popularity has increased by 13.0%. In 2001, approximately 1 in every 69,252 girls born was named Katilynn. STABLE Recent data shows the name is currently stable.