Gustav Ejstes (born 23 December 1979) is a Swedish musician.

He is the singer and frontman of the Swedish psychedelic rock band Dungen.

Ejstes himselfs plays many of the instruments within his recordings, alongside bandmates Reine Fiske (guitar), Mattias "Tiaz" Gustavsson (bass) and Johan Holmegard (drums).

[2] Ejstes is also a member of a band called Amason, together with Idiot Wind (Amanda Bergman Mattson), Pontus Winnberg, Nils Törnqvist and Petter Winnberg.

He also played the flute on the track called "Nattmusik" with Swedish hip hop band Fattaru released in 2003.