Demetrius is a distinctive boys' name in United States, ranking #734 in 2016 with 333 recorded births. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 56.1%. In 2016, approximately 1 in every 5,697 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.