Katelynn is a distinctive girls' name in United States, ranking #2287 in 2024 with 81 recorded births. The name reached its all-time peak in 1998 with 1,457 births ranking #210. Since 1996, the popularity has decreased by 93.7%. In 2024, approximately 1 in every 19,916 girls born was named Katelynn. STABLE Recent data shows the name is currently stable.