| Mário Xandó de Oliveira Neto | |
| Height: | 1.93 m |
| Birth Date: | 31 July 1961 |
| Birth Place: | Poços de Caldas, Minas Gerais, Brazil |
| Position: | Opposite |
| Teamnumber: | 2 |
| Nationalyears: | 1979–1987 |
Mário Xandó de Oliveira Neto (born 31 July 1961),[1] known as Xandó, is a Brazilian former volleyball player who won a silver medal at the 1984 Summer Olympics in Los Angeles.[2] Xandó also competed at the 1980 Summer Olympics in Moscow. He won a silver medal at the 1982 FIVB World Championship in Argentina.
Xandó won a silver medal at the 1979 Pan American Games in Caguas, a gold medal at the 1983 Pan American Games in Caracas, and a bronze medal at the 1987 Pan American Games in Indianapolis.