Family name Duvas (Duvas 
) , worldwide, is a very rare last name. The last name Duvas is habitual in Nicaragua, where it is a very rare surname, France, and Argentina, where it is an extremely rare surname. Measured by absolute frequency, this name is the most popular in India, France, and Argentina. More prevalently, Duvas is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Duvas | United States, India, Argentina, France, Brazil |