Dalen is a distinctive boys' name in United States, ranking #2072 in 2007 with 66 recorded births. The name reached its all-time peak in 2001 with 99 births ranking #1316. Since 1996, the popularity has increased by 57.1%. In 2007, approximately 1 in every 31,443 boys born was named Dalen. FALLING Recent data shows the name is currently falling.