Cognomen Cristobal Ruben (Cristobal Ruben 
) , worldwide, is an extremely rare last name. The family name Cristobal Ruben is habitual in Latin America and the Caribbean, particularly Chile, where it is a very rare surname. More frequently, Cristobal Ruben is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Cristobal Ruben | Costa Rica, Spain, Ecuador, Chile, Peru |