The Mutual UFO Network, or MUFON for short, is headquartered in Morisson, Colorado. It is one of the oldest and largest UFO investigative organizations in the United States. Established in 1969, it now has more than 3,000 members worldwide with most of its membership base situated in the continental United States. MUFON operates a worldwide network of regional directors for field investigations of UFO sightings reports, holds an annual national symposium and publishes the monthly MUFON UFO Journal.

The stated mission of MUFON is the scientific study of UFOs for the benefit of humanity through investigations, research and education.

Along with CUFOS (the J. Allen Hynek Center for UFO Studies) and FUFOR (the Fund for UFO Research), MUFON is part of the, a collaborative effort by the three main UFO investigative organizations in the US whose goal is to share personnel and other research resources, and to fund and promote the scientific study of the UFO phenomenon.