The 27th Rifle Division (Russian: 27-я стрелковая дивизия) was a tactical unit in the Red Army of Soviet Russia and then the Soviet Union, active between 1918 and 1945. First formed during the Russian Civil War on November 3, 1918, as part of 5th Red Army. Commanded by Vitovt Putna, it was transferred to the 16th Red Army in 1920, and took part in the Polish–Soviet War. Defeated in the battles of Radzymin and Ossów (collectively known as the Battle of Warsaw), it practically ceased to exist.