Kallyn is a distinctive girls' name in United States, ranking #6677 in 2025 with 17 recorded births. The name reached its all-time peak in 2008 with 20 births ranking #6683. Since 1996, the popularity has increased by 142.9%. In 2025, approximately 1 in every 94,545 girls born was named Kallyn. STABLE Recent data shows the name is currently stable.