Dalen is a distinctive boys' name in United States, ranking #5363 in 2018 with 17 recorded births. The name reached its all-time peak in 2001 with 99 births ranking #1316. Since 1996, the popularity has decreased by 59.5%. In 2018, approximately 1 in every 106,793 boys born was named Dalen. FALLING Recent data shows the name is currently falling.