David Samuel "Sam" Peckinpah (/ˈpɛkɪnˌpɑː/; February 21, 1925 – December 28, 1984) was an American film director and screenwriter who achieved prominence following the release of the Western epic The Wild Bunch (1969). He was known for the visually innovative and explicit depiction of action and violence as well as his revisionist approach to the Western genre.

Peckinpah's films generally deal with the conflict between values and ideals, and the corruption of violence in human society. He was given the nickname "Bloody Sam" owing to the violence in his films. His characters are often loners or losers who desire to be honorable, but are forced to compromise in order to survive in a world of nihilism and brutality.

Peckinpah's combative personality, marked by years of alcohol and drug abuse, affected his professional legacy. Many of his films were noted for behind-the-scenes battles with producers and crew members, damaging his reputation and career during his lifetime. Some of his films, including Straw Dogs (1971), Pat Garrett and Billy the Kid (1973) and Bring Me the Head of Alfredo Garcia (1974), remain controversial.