Around the globe, Lecoq-Vallon (Lecoq-Vallon 
) is an extremely rare unknown gender forename. Much more prevalently, Lecoq-Vallon is the last name as well as the forename. Parts of the name also exists independently as a last name Lecoq, and a last name Vallon.
| VARIANT | COUNTRY |
|---|---|
| Lecoq-Vallon | France |