Strike (Russian: Стачка, romanized: Stachka) is a 1925 Soviet silent propaganda film directed and edited by Sergei Eisenstein. Originating as one entry out of a proposed seven-part series titled "Towards Dictatorship of the Proletariat," Strike was a joint collaboration between the Proletcult Theatre and the film studio Goskino. As Eisenstein's first full-length feature film, it marked his transition from theatre to cinema, and his next film Battleship Potemkin emerged from the same film cycle.

Arranged in six parts, the film depicts a strike in 1903 by the workers of a factory in pre-revolutionary Russia, and their subsequent suppression. It is best known for a sequence towards the climax, in which the violent suppression of the strike is cross-cut with footage of cattle being slaughtered, and similar animal metaphors are used throughout the film to describe various individuals.