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Last name Riow (Rio
, Riow
) , globally, is a common cognomen. The surname Riow is habitual in Portugal, where it is quite a common surname, Spain, and Cabo Verde (explore the name in all countries). Not in comparison with a country's population, this name is the most popular in Indonesia, Philippines, and France. More frequently, Riow is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Rio | Philippines, Colombia, Spain, France, Indonesia |
| Riow | Malaysia |