Jailynn is a distinctive girls' name in United States, ranking #3606 in 2025 with 42 recorded births. The name reached its all-time peak in 2007 with 156 births ranking #1485. Since 1996, the popularity has increased by 180.0%. In 2025, approximately 1 in every 38,268 girls born was named Jailynn. STABLE Recent data shows the name is currently stable.