Ludwig August Theodor Beck (; 29 June 1880 – 20 July 1944) was a German general and Chief of the German General Staff during the early years of the Nazi regime in Germany before World War II. Although Beck never became a member of the Nazi Party, in the early 1930s he supported Adolf Hitler's forceful denunciation of the Versailles Treaty and belief in the need for Germany to rearm. Beck had grave misgivings regarding the Nazi demand for all German officers to swear an oath of fealty to the person of Hitler in 1934, but Beck believed that Germany needed strong government, which Hitler could successfully provide if the Führer was influenced by traditional elements within the military, rather than by the SA and SS.