20 February] 1860 – 8 August 1945), was a Russian and Soviet chemist and recipient of the Stalin Prize (1941) and the title Hero of Socialist Labour (1945).

Favorsky studied chemistry at the imperial Saint Petersburg State University from 1878 to 1882.

He joined Alexander Butlerov's laboratory for several years, and in 1891 became a lecturer.

In 1895, Favorksy received his PhD and became professor for technical chemistry.

For his improvement of the production of synthetic rubber, Favorsky was awarded the Stalin Prize in 1941.