Surname Bulvas (Bulvas 
) , across the world, is a rare cognomen. The surname Bulvas is habitual in Czechia, where it is quite a rare surname, Slovakia, and Canada, where it is an extremely rare surname. Measured by absolute frequency, the name is most common in Czechia, Slovakia, and the United States.
| VARIANT | COUNTRY |
|---|---|
| Bulvas | Slovakia, Czechia, United States, Canada, Venezuela |
| karel bulvas CZ (b. 1874) |
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| miroslav bulvas researcher (ORCID 0000-0003-4211-6696) (b. 1950) |
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