Oskar Fischer (disambiguation)
Oskar Fischer is the name of the following people:
- Oskar Fischer (physician) (1876–1942), Czech psychiatrist and neuropathologist
- Oskar Fischer (painter) (1892–1955), German painter
- Oskar Fischer (politician, 1894) (1894–1963), German politician (NSDAP) and SS-Obersturmführer
- Oskar Fischer (1905–1982), German Trotskyist, Otto Schüssler
- Oskar Fischer (1923–2020), German politician (SED) and diplomat
- Oskar Fischer (painter, 1910) (1910–1986), Austrian painter