Arlen is a distinctive girls' name in United States, ranking #5752 in 2011 with 23 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has increased by 53.3%. In 2011, approximately 1 in every 76,470 girls born was named Arlen. STABLE Recent data shows the name is currently stable.