Sergei Nikolaevich Troinitsky (1882–1946), was the first director of the Hermitage Museum in St Petersburg after the 1917 revolution.
- Occupation
- art historian, heraldist, genealogist
- Position held
- museum director
- Citizenship
- Russian Empire, Soviet Union
- Born
- August 19, 1882, 1882
- Died
- February 2, 1948, 1948
