Jailyn is a distinctive girls' name in United States, ranking #1991 in 2019 with 97 recorded births. The name reached its all-time peak in 2007 with 278 births ranking #967. Since 1996, the popularity has increased by 49.2%. In 2019, approximately 1 in every 17,295 girls born was named Jailyn. FALLING Recent data shows the name is currently falling.