Family name Dehaumont (Dehaumont 
) , all over the world, is a rare cognomen. The family name Dehaumont is habitual in Switzerland, where it is a rare surname, France, and Canada, where it is an extremely rare surname.
| VARIANT | COUNTRY |
|---|---|
| Dehaumont | Switzerland, Canada, France |
| polly-jaham dehaumont (b. 1793) |
|
|
| patrick dehaumont FR (b. 1957) |
|