Swedish motion-picture director whose films were preeminent in the post-World War II Swedish film revival. He broke with the stage traditions that were inhibiting the artistic development of the Swedish cinema and was among the first to use a lyrical style that was further developed by the filmmaker Ingmar Bergman.

Sjöberg was trained as an actor and stage producer and studied film production at Ufa, Germany's major film studio. His first motion picture, Den starkaste (1929; The Strongest), was a purely cinematic form of expression. He spent the next 10 years as a theatrical director. In 1940 his film Den blomstertid (Blossom Time) initiated a series of internationally successful motion pictures that combined technical expertise and visual freshness with sensitive character portrayal. Himlaspelet (1942; The Road to Heaven) examined the deeply rooted spirituality of the Swedish people; Hets (1944; Eng. trans. Frenzy, or Torment), written by Ingmar Bergman, brought worldwide critical acclaim; Fröken Julie (1950; Miss Julie) was a film version of Strindberg's play. Sjöberg's other films included Karin Månsdotter (1954), Sista paret ut (1956; Last Pair Out), Domaren (1960; The Judge), Ön (1964; The Island), and Fadern (1969; The Father).