Katilynn is a distinctive girls' name in United States, ranking #10068 in 2012 with 11 recorded births. The name reached its all-time peak in 1999 with 28 births ranking #4144. Since 1996, the popularity has decreased by 52.2%. In 2012, approximately 1 in every 160,067 girls born was named Katilynn. STABLE Recent data shows the name is currently stable.