The 11th Mechanized Corps was a mechanized corps of the Red Army, formed twice. The corps was first formed as one of the original two Red Army mechanized corps from the 11th Rifle Division in Leningrad. In 1934 it was transferred to the Transbaikal Military District and in 1938 became the 20th Tank Corps. The corps was reformed in March 1941 in western Belarus. After the German invasion of the Soviet Union, the understrength corps was destroyed in the Battle of Białystok–Minsk.