Darah dan Doa ([daˈrah ˈdan doˈa]; Indonesian for Blood and Prayer, released internationally as The Long March) is a 1950 Indonesian war film directed and produced by Usmar Ismail, telling the story of the Siliwangi Division and its leader Captain Sudarto on a march to West Java. Following Ismail's Dutch-produced Tjitra (1949), Darah dan Doa is often cited as the first 'Indonesian' film, and the film's first day of shooting – 30 March – is celebrated in Indonesia as National Film Day.

Produced on a budget of 350,000 rupiah and intended to be screened at the Cannes Film Festival, financial difficulties led production of Darah dan Doa to almost stop before the director received financial backing. After raising controversy for its subject material, the film underwent censorship and was finally released to commercial failure. Retrospective analysis has, however, been more positive, and Ismail has been dubbed the "father of Indonesian film".