The 6th Army was a field army of the German Army during World War II. It is widely known for its defeat by and subsequent surrender to the Red Army at the Battle of Stalingrad on 2 February 1943. It committed war crimes at Babi Yar while under the command of Field Marshal Walther von Reichenau during Operation Barbarossa.

The German Army was the land forces component of the Wehrmacht, the regular armed forces of Nazi Germany, from 1935 until it effectively ceased to exist in 1945 and then was formally dissolved in August 1946. During World War II, a total of about 13.6 million soldiers served in the German Army. Army personnel were made up of volunteers and conscripts.