Last name Boulet-Gauthier (Boulet-Gauthier 
) , globally, is an extremely rare family name. The last name Boulet-Gauthier is characteristic of Northern America, particularly Canada, where it is an extremely rare surname. Parts of the name also exists independently as a last name Boulet, and a last name Gauthier.
| VARIANT | COUNTRY |
|---|---|
| Boulet-Gauthier | Canada |