Cognomen Gervain (Gervain 
) , across the world, is a very rare family name. The last name Gervain is habitual in France, where it is a very rare surname, Canada, and Venezuela, where it is an extremely rare surname. Not in comparison with a country's population, it is the most numerous in France, the United States, and Canada. Much more prevalently, Gervain is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Gervain | France, Democratic Republic of the Congo, Canada, United States, Venezuela |
| judit gervain researcher |
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| judit gervain (b. 1978) |
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