The Death Ray (Russian: Луч смерти, romanized: Luch smerti) is a 1925 Soviet science fiction film directed by Lev Kuleshov.

Despite the fact that many sources claim the inspiration for the film to be the novel The Garin Death Ray by Aleksei Tolstoy, this is not the case.

The film takes place in an unspecified Western capitalist country where a fascist government is attempting to suppress a socialist uprising.

There he meets the engineer Podobed who invents the "death ray" – a device which explodes gunpowder and fuel mixtures at a distance.

Father Revo, a fascist intelligence agent, steals the invention and brings it back to his country.