Vasilios is a distinctive boys' name in United States, ranking #5377 in 2025 with 18 recorded births. The name reached its all-time peak in 1998 with 30 births ranking #2778. Since 1996, the popularity has decreased by 14.3%. In 2025, approximately 1 in every 94,893 boys born was named Vasilios. RISING Recent data shows the name is currently rising.