Karl Altmann
Karl Altmann is the name of the following people:
- Karl Altmann (painter) (1800–1861), German painter
- Karl Altmann (venereologist) (1880–1968), German venereologist
- Karl Altmann (politician) (1904–1960), Austrian politician (KPÖ)
- Karl Altmann (ice hockey player) (* 1959), German ice hockey player
