Jailynn is a distinctive girls' name in United States, ranking #3445 in 1998 with 35 recorded births. The name reached its all-time peak in 2007 with 156 births ranking #1485. Since 1996, the popularity has increased by 133.3%. In 1998, approximately 1 in every 50,483 girls born was named Jailynn. STABLE Recent data shows the name is currently stable.