In the entire world, Viais (Viais 
) is a very rare epicene forename. The given name Viais is characteristic of Southern Asia, particularly India, where it is an extremely rare unisex name. Much more frequently, Viais is the last name as well as the forename.
| VARIANT | COUNTRY |
|---|---|
| Viais | Brazil, Mexico, Portugal, India, France |
Mr, Celso, Cesar, Kevin, Pedro, David, Diego, Leuci, Lucas, Luana, Lydie, Jorge, Thais, Neide, Neusa, Heder, Vitor, Inês, Marcos, Marcio, Manoel, Monica, Aline, Steve, Sueli, Santa, Ms, Ana, Ben, Kim, Ida, Alex, Rute, Davi, Luis, Luiz, Miguel, Jose, Jota, Juan, Eric, Hugo, Vera, Iria, Maria, Marie, Mario, Meire, Joao, and Sandra