Jailyn is a distinctive girls' name in United States, ranking #1664 in 2013 with 128 recorded births. The name reached its all-time peak in 2007 with 278 births ranking #967. Since 1996, the popularity has increased by 96.9%. In 2013, approximately 1 in every 13,706 girls born was named Jailyn. FALLING Recent data shows the name is currently falling.