Cognomen Domingo Ruben (Domingo Ruben 
) , in the entire world, is a very rare family name. The surname Domingo Ruben is characteristic of Chile, where it is a rare surname, and Spain, where it is a very rare surname. More frequently, Domingo Ruben is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Domingo Ruben | Paraguay, Spain, Ecuador, Chile, Peru |