Arlen is a distinctive girls' name in United States, ranking #8342 in 2017 with 13 recorded births. The name reached its all-time peak in 2007 with 31 births ranking #4696. Since 1996, the popularity has decreased by 13.3%. In 2017, approximately 1 in every 132,760 girls born was named Arlen. STABLE Recent data shows the name is currently stable.