Surname Lecoq-Vallon (Lecoq-Vallon 
) , around the globe, is a very rare cognomen. The family name Lecoq-Vallon is characteristic of Western Europe, particularly France, where it is a very rare surname. Parts of the name also exists independently as a last name Lecoq, and a last name Vallon.
| VARIANT | COUNTRY |
|---|---|
| Lecoq-Vallon | France |