Katilynn is a distinctive girls' name in United States, ranking #8593 in 2005 with 13 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #4144. Since 1996, the popularity has decreased by 43.5%. In 2005, approximately 1 in every 142,131 girls born was named Katilynn. STABLE Recent data shows the name is currently stable.