Cognomen Marchay (Marchay 
) , all over the world, is a very rare surname. The surname Marchay is characteristic of France, where it is a very rare surname, Malaysia, and Philippines, where it is an extremely rare surname. In absolute terms, this name is the most popular in France, Malaysia, and India. Very seldom, Marchay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Marchay | South Africa, United States, Malaysia, India, France |