Demetrius is a distinctive boys' name in United States, ranking #679 in 2015 with 374 recorded births. This places Demetrius in the top 5% of ranked US boys' names for the year. Its actual usage is classified as Uncommon. The name reached its all-time peak in 1996 with 759 births ranking #338. Since 1996, the popularity has decreased by 50.7%. In 2015, approximately 1 in every 5,124 boys born was named Demetrius. FALLING Recent data shows the name is currently falling.