Jailyn is a distinctive girls' name in United States, ranking #1630 in 2016 with 134 recorded births. The name reached its all-time peak in 2007 with 278 births ranking #967. Since 1996, the popularity has increased by 106.2%. In 2016, approximately 1 in every 13,220 girls born was named Jailyn. FALLING Recent data shows the name is currently falling.