First Blood is a 1982 American action film directed by Ted Kotcheff and co-written by and starring Sylvester Stallone as Vietnam War veteran John Rambo. It features Richard Crenna as Rambo's mentor Sam Trautman and Brian Dennehy as Sheriff Will Teasle. It is the first installment in the Rambo series, followed by Rambo: First Blood Part II.

The film is based on the 1972 novel First Blood by David Morrell, which many directors and studios unsuccessfully tried to adapt in the 1970s. In the film, Rambo is a troubled and misunderstood Vietnam veteran who must rely on his combat and survival skills when a series of brutal events results in him having to survive a massive manhunt by police and government troops near the small town of Hope, Washington.