Jailyn is a distinctive girls' name in United States, ranking #1711 in 1997 with 91 recorded births. The name reached its all-time peak in 2007 with 278 births ranking #967. Since 1996, the popularity has increased by 40.0%. In 1997, approximately 1 in every 19,128 girls born was named Jailyn. FALLING Recent data shows the name is currently falling.