Demetrios is a distinctive boys' name in United States, ranking #2175 in 1999 with 43 recorded births. The name reached its all-time peak in 2002 with 57 births ranking #1952. Since 1996, the popularity has increased by 10.3%. In 1999, approximately 1 in every 44,653 boys born was named Demetrios. RISING Recent data shows the name is currently rising.