William Oliver Studeman (born January 16, 1940) is a retired Admiral of the United States Navy and former Deputy Director of the United States' Central Intelligence Agency, with two extended periods as Acting Director of Central Intelligence. As Deputy Director of Central Intelligence, he served in both the George H. W. Bush and Bill Clinton administrations under Directors of Central Intelligence Robert Gates, R. James Woolsey, Jr. and John M. Deutch. Admiral Studeman retired from the Navy in 1995 after almost 35 years of service. Between 1988 and 1992 he was director of the National Security Agency; he was the Director of Naval Intelligence, September 1985 - July 1988.