James Jesus Angleton, American CIA agent (died 1987)

James Jesus Angleton was an American CIA officer who served as chief of the counterintelligence department of the Central Intelligence Agency from 1954 to 1975. According to Director of Central Intelligence Richard Helms, Angleton was "recognized as the dominant counterintelligence figure in the non-communist world".

The Central Intelligence Agency is a civilian foreign intelligence service of the federal government of the United States tasked with advancing national security through collecting and analyzing intelligence from around the world and conducting covert operations. The agency is headquartered in the George Bush Center for Intelligence in Langley, Virginia, and is sometimes metonymously called "Langley". A major member of the United States Intelligence Community (IC), the CIA has reported to the director of national intelligence since 2004, and is focused on providing intelligence for the president and the Cabinet.