Arlen is a distinctive girls' name in United States, ranking #11366 in 2010 with 9 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has decreased by 40.0%. In 2010, approximately 1 in every 197,481 girls born was named Arlen. STABLE Recent data shows the name is currently stable.