Worldwide, Duclos-Montagne (Duclos-Montagne 
) is an extremely rare unknown gender given name. Much more frequently, Duclos-Montagne is the last name as well as the forename. Parts of the name also exists independently as a last name Duclos, and a last name Montagne.
| VARIANT | COUNTRY |
|---|---|
| Duclos-Montagne | France |