Jassen is a distinctive boys' name in United States, ranking #13157 in 2011 with 5 recorded births. This places Jassen in the bottom 8% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2002 with 6 births ranking #9938. In 2011, approximately 1 in every 379,798 boys born was named Jassen. STABLE Recent data shows the name is currently stable.