Cognomen Ряуба (Ряуба 
) , around the globe, is a very rare last name. The cognomen Ряуба is characteristic of Eastern Europe, particularly Belarus, where it is a rare surname, Ukraine, where it is an extremely rare surname, and Russia. Very seldom, Ряуба is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ряуба | Russia, Ukraine, Belarus |