William Oliver Studeman (born January 16, 1940) is a retired admiral of the United States Navy and former deputy director of the Central Intelligence Agency, with two extended periods as acting Director of Central Intelligence.

As deputy director of Central Intelligence, he served in the administrations of George H. W. Bush and Bill Clinton under three directors of Central Intelligence, Robert Gates, R. James Woolsey Jr., and John M. Deutch.

Studeman retired in 2005 from Northrop Grumman Corporation as vice president and deputy general manager of mission systems.

In this position, he focused on strategies, programs, business development, and marketing related to intelligence and information warfare, as well as corporate cross-sector integration, and on managing technology partnerships and concepts related to NetCentricity ISR, IO/IW and advanced command environments.

He also has received service medals from the Governments of France, Brazil, and South Korea.