Johann von Grünewaldt
Johann von Grünewaldt is the name of the following people:
- Johann Engelbrecht Christoph von Grünewaldt (1796–1862), gentleman on hookah, Estonian politician and Russian civil governor
- Johann Ernst von Grünewaldt (1835–1901), Herr auf Koik and Brandten, German-Baltic politician
- Johann Georg Otto von Grünewaldt (1830–1910), German-Baltic medic and State Councilor