Dagen is a distinctive boys' name in United States, ranking #5615 in 1996 with 10 recorded births. This places Dagen in the bottom 47% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2004 with 24 births ranking #3754. In 1996, approximately 1 in every 189,423 boys born was named Dagen. FALLING Recent data shows the name is currently falling.