Nereo may also refer to:
- An alternative name of the Greek deity Nereus
- Nereo Cave, a huge underwater sea-cave in the Coral riviera of Alghero, Italy.
- Nereo Bolzon (born 1960), Canadian football player
- Nereo Champagne, (born 1985) an Argentine football goalkeeper.
- Nereo Fernández, (born 1979) an Argentine footballer.
- Nereo Laroni, (Born 1942) an Italian politician.
- Nereo Rocco, (May 20, 1912 – February 20, 1979) an Italian football player and manager.