Dalen is a distinctive boys' name in United States, ranking #1792 in 2005 with 73 recorded births. The name reached its all-time peak in 2001 with 99 births ranking #1316. Since 1996, the popularity has increased by 73.8%. In 2005, approximately 1 in every 27,358 boys born was named Dalen. FALLING Recent data shows the name is currently falling.