Demetrio is a distinctive boys' name in United States, ranking #4140 in 2010 with 24 recorded births. The name reached its all-time peak in 1999 with 88 births ranking #1356. Since 1996, the popularity has decreased by 40.0%. In 2010, approximately 1 in every 79,934 boys born was named Demetrio. FALLING Recent data shows the name is currently falling.