Katilynn is a distinctive girls' name in United States, ranking #6937 in 2004 with 17 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #4144. Since 1996, the popularity has decreased by 26.1%. In 2004, approximately 1 in every 108,007 girls born was named Katilynn. STABLE Recent data shows the name is currently stable.