- October 2, 1552 - Siege of Kazan: The Russian army breached the walls of Kazan.
- October 23, 1582 - Battle of Chuvash Cape: Russian soldiers dispersed the armed forces of the Khanate of Sibir from its capital, Qashliq.
- October 24, 1813 - Russo-Persian War (1804–13): According to the Treaty of Gulistan, the Persian Empire ceded its Transcaucasian territories to Russia.
- October 25, 1917 - October Revolution: Soldiers directed by the Military Revolutionary Committee of the Petrograd Soviet captured the Winter Palace, ending the power of the Russian Provisional Government.
- October 26, 2002 - Moscow theater hostage crisis: The police pumped anesthetic into the building, then stormed it from every entrance. The subsequent gunfight left 42 terrorists and 120 hostages dead.