Demetrus is a distinctive boys' name in United States, ranking #6569 in 2001 with 10 recorded births. The name reached its all-time peak in 1996 with 20 births ranking #3435. Since 1996, the popularity has decreased by 50.0%. In 2001, approximately 1 in every 194,283 boys born was named Demetrus. FALLING Recent data shows the name is currently falling.