Dallen is a distinctive boys' name in United States, ranking #2340 in 1996 with 34 recorded births. This places Dallen in the top 22% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2008 with 53 births ranking #2410. In 1996, approximately 1 in every 55,713 boys born was named Dallen. FALLING Recent data shows the name is currently falling.