Rok Mašina (; trans. Rock Machine) was a short-lasting Yugoslav hard rock and heavy metal band formed in Belgrade in 1980. Formed by former members of the progressive/hard rock band Pop Mašina Robert Nemeček (vocals and bass guitar) and brothers Zoran and Vidoja Božinović (guitars), Rok Mašina released only one studio album, Rok Mašina, before disbanding in 1982, while in the midst of recording of their second album. Part of the material recorded for their second album appeared in 1983 on the influential mini-album Izrod na granici.
