Arlen is a distinctive girls' name in United States, ranking #6120 in 2009 with 22 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has increased by 46.7%. In 2009, approximately 1 in every 83,494 girls born was named Arlen. STABLE Recent data shows the name is currently stable.