Arnold Hans Weiss (July 25, 1924 – December 7, 2010) was a German-born refugee from Nazi Germany who emigrated to the United States where he became an intelligence officer working for the Office of Strategic Services during World War II and played a key role in the discovery of the last will and testament of Adolf Hitler, dictated during the last days of the war in Europe and laying out the succession of leadership following his impending suicide as the Red Army overtook Berlin and encircled the Führerbunker.