The story of Vasilios
Vasilios is rare for boys in the United States, ranked #5,377 in 2025 with 18 babies given the name. It is currently declining compared with a decade ago.
Since 1923, 1,500 American babies have been named Vasilios. Its peak came in 1975, when 45 newborns received the name, the signature sound of the 1970s.
The chart above shows the full history: the popularity view (births per 1,000 babies) is the honest comparison across generations, since total US births have changed enormously since 1880. Switch to the rank view to see where Vasilios stood among all boys' names in any year, or use the compare tool to plot it against other names.