Family name Grand-Bois (Grand-Bois 
) , worldwide, is a very rare last name. The surname Grand-Bois is habitual in France, where it is a very rare surname, Canada, and the United States, where it is an extremely rare surname. Much less frequently, Grand-Bois is the forename as well as the last name. Parts of the name also exists independently as a last name Grand, and a last name Bois.
| VARIANT | COUNTRY |
|---|---|
| Grand-Bois | Canada, France, United States |