David Henry Blee (November 20, 1916 - August 4, 2000) served in the Central Intelligence Agency (CIA) from its founding in 1947 until his 1985 retirement. During World War II in the Office of Strategic Services (OSS), he had worked in Southeast Asia. In the CIA, he served as Chief of Station (COS) in Asia and Africa, starting in the 1950s. He then led the CIA's Near East Division.
He is best known for his work as head of the CIA's Soviet Division, where he made significant changes in espionage strategy. Specifically, Soviets who came forward to offer intelligence information to the CIA would no longer be greeted with harsh treatment and categorically subjected to an enduring suspicion. His transformative changes led to the departure of James Angleton, the counterintelligence chief who had long enjoyed a dominant role in the CIA.