Dalen is a distinctive boys' name in United States, ranking #5910 in 2025 with 15 recorded births. The name reached its all-time peak in 2001 with 99 births ranking #1316. Since 1996, the popularity has decreased by 64.3%. In 2025, approximately 1 in every 113,872 boys born was named Dalen. FALLING Recent data shows the name is currently falling.