Katelynn is a distinctive girls' name in United States, ranking #2533 in 2023 with 70 recorded births. The name reached its all-time peak in 1998 with 1,457 births ranking #210. Since 1996, the popularity has decreased by 94.5%. In 2023, approximately 1 in every 22,895 girls born was named Katelynn. STABLE Recent data shows the name is currently stable.