Jailyn is a distinctive girls' name in United States, ranking #1023 in 2008 with 256 recorded births. The name reached its all-time peak in 2007 with 278 births ranking #967. Since 1996, the popularity has increased by 293.8%. In 2008, approximately 1 in every 7,386 girls born was named Jailyn. FALLING Recent data shows the name is currently falling.