Josef “Sepp” Allgeier (6 February 1895 – 11 March 1968) was a German cinematographer who worked on around fifty features, documentaries and short films. He began his career as a cameraman in 1911 for the Expreß Film Co. of Freiburg. In 1913 he filmed newsreels in the Balkans. He then became an assistant to Arnold Fanck, a leading director of Mountain films. He worked frequently with Luis Trenker and Leni Reifenstahl, both closely associated with the genre.