Katilynn is a distinctive girls' name in United States, ranking #7905 in 2007 with 16 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #4144. Since 1996, the popularity has decreased by 30.4%. In 2007, approximately 1 in every 120,153 girls born was named Katilynn. STABLE Recent data shows the name is currently stable.