Styx

Styx may refer to:

Styx (band), an American rock band popular in the 1970s and 1980s
- Styx (album), the first album released by the band Styx in 1972
Styx forest, a forest in Tasmania, Australia
Styx (Game), a 1983 game by Windmill Software
Styx (MUD), a text-based game
Styx (mythology), the river that forms the boundary between the underworld and the world of the living, as well as a goddess and a nymph that represent the river
Styx (protocol), the network protocol at the heart of the Inferno operating system
Styx River (disambiguation), any of various real rivers named for the mythological one