Bo Widerberg, (June 8, 1930 – May 1, 1997) was a Swedish film director, writer, editor and actor. He was born Bo Gunnar Widerberg in Malmö, Skåne län, Sweden.

He died in Ängelholm, Skåne län, Sweden of stomach cancer. Widerberg was the director of films such as Raven's End (1963), Elvira Madigan (1967), Ådalen 31 (1969), Joe Hill (1971), Fimpen (1974), The Man on the Roof (1976), Victoria (1979), The Man from Majorca (1984), The Serpent's Way (1986) and All Things Fair (1995). He won a Silver Bear prize in Berlin for All things fair and a Special Grand Jury Prize at Cannes Festival for Ådalen 31.