Demetrius is a distinctive boys' name in United States, ranking #831 in 2021 with 286 recorded births. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 62.3%. In 2021, approximately 1 in every 6,113 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.