Family name Dèche (Dèche 
) , worldwide, is an extremely rare cognomen. The family name Dèche is habitual in Western Europe, particularly France, where it is a very rare surname. Much more frequently, Dèche is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Dèche | France, Democratic Republic of the Congo |
| jean dèche French politician (1855-1940), FR (b. 1855) |
|
Mboyo, Malonga, Ambende, Bouanga, Pandzou, Mayamona, Bopoundza, Ndoumounou, and Maboundou-Ngounga