Arlen is a distinctive girls' name in United States, ranking #6424 in 2002 with 17 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has increased by 13.3%. In 2002, approximately 1 in every 105,695 girls born was named Arlen. STABLE Recent data shows the name is currently stable.