Demetrius is a distinctive boys' name in United States, ranking #580 in 2011 with 432 recorded births. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 43.1%. In 2011, approximately 1 in every 4,396 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.