Demetrio is a distinctive boys' name in United States, ranking #1895 in 2001 with 58 recorded births. The name reached its all-time peak in 1999 with 88 births ranking #1356. Since 1996, the popularity has increased by 45.0%. In 2001, approximately 1 in every 33,497 boys born was named Demetrio. FALLING Recent data shows the name is currently falling.