Dillen is a distinctive boys' name in United States, ranking #3698 in 2002 with 23 recorded births. The name reached its all-time peak in 2003 with 40 births ranking #2557. Since 1996, the popularity has decreased by 30.3%. In 2002, approximately 1 in every 84,412 boys born was named Dillen. STABLE Recent data shows the name is currently stable.