Family name Riol (Riol 
) , around the globe, is a rare cognomen. The family name Riol is habitual in France, where it is a rare surname, Spain, and Argentina. Measured by absolute frequency, the name is most common in France, Spain, and Philippines. Likewise, Riol is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Riol | Philippines, Spain, France, United States, Argentina |
|
miguel etchebarne riol CL (b. 1903) |
|
| pierre riol French politician, FR (b. 1957) |
|