Demetrius is a distinctive boys' name in United States, ranking #514 in 2010 with 501 recorded births. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 34.0%. In 2010, approximately 1 in every 3,829 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.