Dillen is a distinctive boys' name in United States, ranking #2396 in 1996 with 33 recorded births. This places Dillen in the top 23% of ranked US boys' names for the year. Its actual usage is classified as Rare. The name reached its all-time peak in 2003 with 40 births ranking #2557. In 1996, approximately 1 in every 57,401 boys born was named Dillen. STABLE Recent data shows the name is currently stable.