Jailynn is a distinctive girls' name in United States, ranking #2760 in 1999 with 50 recorded births. The name reached its all-time peak in 2007 with 156 births ranking #1485. Since 1996, the popularity has increased by 233.3%. In 1999, approximately 1 in every 35,476 girls born was named Jailynn. STABLE Recent data shows the name is currently stable.