Family name Gehres-Mumm (Gehres-Mumm 
) , around the world, is an extremely rare cognomen. The surname Gehres-Mumm is habitual in Western Europe, particularly Germany, where it is an extremely rare surname. Parts of the name also exists independently as a last name Gehres, and a last name Mumm.
| VARIANT | COUNTRY |
|---|---|
| Gehres-Mumm | Germany |