Otto Lowenstein
Otto Löwenstein is the name of the following people:
- Otto Löwenstein (lawyer) (1833–1909), German lawyer and politician
- Otto Löwenstein (psychiatrist) (also Otto Lowenstein ; 1889–1965), German-American psychiatrist
- Otto Löwenstein (zoologist) (also Otto Lowenstein ; 1906–1999), German-British zoologist