Otto Ullrich
Otto Ullrich is the name of the following people:
- Otto Ullrich (entrepreneur) (1827–1903), German entrepreneur and politician (NLP)
- Otto Ullrich (physician) (1894–1957), German pediatrician
- Otto Ullrich (lawyer) (1899–1980), German administrative lawyer and manager
- Otto Ullrich (sociologist) (1938–2015), German sociologist and publicist