The Donetsk–Krivoy Rog Soviet Republic (Russian: Донецко-Криворожская советская республика) was a self-declared Soviet republic of the Russian SFSR founded on 12 February 1918. The republic claimed self-determined territories in treaties of Brest-Litovsk; it was founded three days after the government of Ukraine signed the treaty with Germans, which recognized the borders of Ukrainian People's Republic, within which the Donetsk-Krivoy Rog Soviet Republic was located.