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- December 3, 1533 - Vasili died; his son Ivan the Terrible, succeeded him. His wife Elena Glinskaya became regent.
- December 11, 1618 - Polish–Muscovite War (1605–18): The Truce of Deulino ended the war. Russia ceded the city of Smolensk and the Chernihiv Voivodeship to Poland.
- December 12, 1825 - Under pressure from Konstantin, Nicholas published Alexander's succession manifesto.
- December 16, 1916 - Royal adviser Grigori Rasputin was murdered by a group of nobles in the house of Prince Felix Yusupov.
- December 29, 1922 - The Treaty on the Creation of the USSR united its signatories, the Russian and Transcaucasian SFSRs and the Byelorussian and Ukrainian SSRs, under the power of the Union of Soviet Socialist Republics.