Arlen is a distinctive boys' name in United States, ranking #1681 in 2023 with 101 recorded births. This places Arlen in the top 12% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2025 with 107 births ranking #1587. Since 1996, the popularity has increased by 180.6%. In 2023, approximately 1 in every 16,916 boys born was named Arlen. STABLE Recent data shows the name is currently stable.