Arlen is a distinctive girls' name in United States, ranking #5604 in 2003 with 21 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has increased by 40.0%. In 2003, approximately 1 in every 87,002 girls born was named Arlen. STABLE Recent data shows the name is currently stable.