Sergei Ivanovich Osipov (Russian: ?????´? ???´????? ?´?????; September 22, 1915, Stepankovo, Bezhetsk county, Tver Province, Russian Empire – 1985, Leningrad, USSR) is a Russian painter, graphic artist, and art teacher, who lived and worked in Leningrad, a member of the Leningrad branch of Union of Artists of Russian Federation.
He regarded as one of the representatives of the Leningrad school of painting, most known for his landscape and still life paintings.