Joseph Numa Wenger (June 7, 1901 – September 2, 1970) was a Rear-Admiral of the United States Navy who served as the first Deputy Director of the Armed Forces Security Agency (AFSA), and later as the first Vice Director of the National Security Agency, from December 1952 to November 1953, after the separate divisions of the AFSA merged into the NSA. Wenger was one of the leaders responsible for the development of the NSA. He was a native of Patterson, Louisiana.