Dillen is a distinctive boys' name in United States, ranking #2710 in 2004 with 39 recorded births. The name reached its all-time peak in 2003 with 40 births ranking #2557. Since 1996, the popularity has increased by 18.2%. In 2004, approximately 1 in every 50,892 boys born was named Dillen. STABLE Recent data shows the name is currently stable.