Surname Ruben Marcos (Ruben Marcos 
) , across the world, is a rare last name. The cognomen Ruben Marcos is habitual in Chile, where it is quite a rare surname, and Spain, where it is a very rare surname. More frequently, Ruben Marcos is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ruben Marcos | Bolivia, Spain, Ecuador, Chile, Peru |