Arlen is a distinctive girls' name in United States, ranking #8952 in 2016 with 12 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has decreased by 20.0%. In 2016, approximately 1 in every 147,624 girls born was named Arlen. STABLE Recent data shows the name is currently stable.