Sergei Tretyakov was a Russian philanthropist and patron of the arts, who co-founded the Tretyakov Gallery in Moscow with his brother Pavel Tretyakov.
- Occupation
- businessperson, art collector, patron of the arts, entrepreneur
- Position held
- mayor of Moscow
- Citizenship
- Russian Empire
- Born
- January 19, 1834, 1834
- Died
- July 25, 1892