This is a list of government-sponsored investigations or reports related to UFOs.

• Operação Prato

• Project Magnet
• Project Second Storey

• GEPAN / SEPRA / GEIPAN

• Institute 22

• Flying Saucer Working Party
• Project Condign

• Advanced Aerospace Threat Identification Program
• Roswell UFO incident
• Brookings Report
• Condon Committee
• Estimate of the Situation
• Project Blue Book
• Project Grudge
• Project Serpo
• Project Sign
• Project Silver Bug
• Robertson Panel
• All-domain Anomaly Resolution Office (AARO)
• NASA's UAP independent study team
• Unidentified Anomalous Phenomena Disclosure Act
• Immaculate Constellation

• Uruguayan Air Force Commission for the Reception and Investigation of Complaints of Unidentified Flying Objects (CRIDOVNI)^[1]

• Cia CIA's Role in the Study of UFOs, 1947-90 — Central Intelligence Agency
• Canada Canada's UFOs: The search for the unknown
• University of Colorado UCB Libraries | Government Publications Library | UFOs
• UK National Archives The National Archives - Homepage