Jailen is a distinctive boys' name in United States, ranking #2245 in 1999 with 41 recorded births. The name reached its all-time peak in 2003 with 94 births ranking #1414. Since 1996, the popularity has increased by 51.9%. In 1999, approximately 1 in every 46,831 boys born was named Jailen. FALLING Recent data shows the name is currently falling.