Surname Sonnaz (Sonnaz 
) , across the world, is an extremely rare last name. The surname Sonnaz is characteristic of Northern America, particularly the United States, where it is an extremely rare surname. Much more prevalently, Sonnaz is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Sonnaz | Turkey, United States |
| giano gerbaix de sonnaz FR (b. 1736) |
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maurizio gerbaix de sonnaz Italian politician (1816-1892), IT (b. 1816) |
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| charles-albert gerbais de sonnaz politician (1839-1920), FR (b. 1839) |
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| pierre de sonnaz IT |
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