Octane (released as Pulse in the United States) is a 2003 horror film directed by Marcus Adams and starring Madeleine Stowe, Mischa Barton, and Norman Reedus. The film follows a divorced mother and her teenage daughter on a late-night road trip, and the mother's battle to find her daughter after she gets caught up with a bizarre cult of young criminals at a truck stop.

Shot largely in Luxembourg, the film features a soundtrack by dance duo Orbital. It was released in the United Kingdom on 14 November 2003, having previously screened at the CineVegas Film Festival in the United States. Upon its release, the film was noted by some critics (such as Variety) for blending elements of American road films with surrealist horror.