Last name Виалий (Vialy 
, Виалий 
, Vialiy 
) , globally, is a rare surname. The cognomen Виалий is habitual in France, where it is a rare surname, Indonesia, where it is a very rare surname, and Honduras. Not in comparison with a country's population, it most frequently occurs in Indonesia, France, and Mexico. More frequently, Виалий is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Vialy | Democratic Republic of the Congo, France, Mexico, United States, Indonesia |
| Виалий | Kazakhstan, Russia, Georgia, Ukraine |
| Vialiy | United States, India, Ukraine |