Otto Magnus von Stackelberg
Otto Magnus von Stackelberg is the name of the following people:
- Otto Magnus von Stackelberg (General) (1704–1765), German-Baltic, Russian statesman and major general
- Otto Magnus von Stackelberg (diplomat) (1736–1800), German-Baltic, Russian diplomat
- Otto Magnus von Stackelberg (archaeologist) (1786–1837), German-Baltic artist and archaeologist
- Otto Magnus von Stackelberg (genealogist) (1867–1947), German-Baltic genealogist, honorary peace judge and district deputy