The 91st Rifle Division was an infantry division of the Red Army and Soviet Army, formed twice. The division was first formed in 1939, fought in the Winter War, and was destroyed in the Vyazma Pocket during the Battle of Moscow. It was reformed in December 1941 and fought in the Battle of Stalingrad and the Crimean Offensive, earning the honorific "Melitopol" and the Order of the Red Banner. The division was downsized into a brigade postwar but became a division again in 1953. It became a motor rifle division in 1957.