Surname Viay (Viay 
) , globally, is a rare last name. The surname Viay is habitual in Mexico, where it is a rare surname, Philippines, where it is a very rare surname, and Canada, where it is an extremely rare surname. Measured by absolute frequency, it is commonest in Mexico, Philippines, and the United States. Likewise, Viay is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Viay | Philippines, Mexico, United States, India, Canada |