Demetrio is a distinctive boys' name in United States, ranking #5441 in 2025 with 17 recorded births. The name reached its all-time peak in 1999 with 88 births ranking #1356. Since 1996, the popularity has decreased by 57.5%. In 2025, approximately 1 in every 100,475 boys born was named Demetrio. FALLING Recent data shows the name is currently falling.