Otto Frank
Otto Frank is the name of the following people:
- Otto Frank (General) (1854–1916), Austrian field military officer
- Otto Frank (physiologist) (1865–1944), German physiologist
- Otto Frank (politician, 1874) (1874–1936), German politician (SPD), MdL Prussia
- Otto Frank (politician, 1900) (1900–1963), German farmer and politician (FDP), MdL Rhineland-Palatinate
- Otto Heinrich Frank (1889–1980), German businessman, father of Anne Frank