Surname Roio (Roio 
) , globally, is a rare family name. The surname Roio is habitual in Estonia, where it is quite a rare surname, Italy, where it is a rare surname, and Bulgaria. In absolute terms, it most frequently occurs in Italy, Brazil, and Argentina. Much less frequently, Roio is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Roio | Brazil, Argentina, Estonia, United States, Italy |
| josé luiz del roio Italian politician, IT (b. 1942) |
|
|
| maili roio Estonian archaeologist, EE (b. 1973) |
|
|
| marcos tadeu del roio historian |
|
Mr, Miles, Sonia, Aline, Allan, Chris, Carlo, Clara, Clair, Craig, Bruna, Paulo, Paolo, Pedro, Ruben, Denis, Dante, David, Diana, Diego, Donna, Guido, Mauro, Marco, Mario, Maria, Ms, Ana, Leo, Noe, Sara, Alan, Anna, Rosa, Rick, Rino, Lucas, Rita, Luiz, Jose, John, Joao, Juca, Tais, Elsa, Vera, Irma, Ivan, Ryan, and Luigi