Grigory Ivanovich Petrovsky (Russian: Григо́рий Ива́нович Петро́вский, Ukrainian: Григо́рій Іва́нович Петро́вський, romanized: Hryhoriii Ivanovych Petrovskyi) (3 February 1878 - 9 January 1958) was a Ukrainian Soviet politician and Old Bolshevik. He participated in signing the Treaty on the Creation of the USSR and the Treaty of Brest-Litovsk. Petrovsky was Communist Party leader in Ukraine until 1938, and one of the officials responsible for implementing Stalin's policy of collectivization.