UFO flap
- 1947 flying disc craze
- 1952 Washington, D.C., UFO incident
- 1984 Hudson Valley UFO sightings
- 1994 Michigan UFO event
- 2024 Northeastern United States drone sightings
- Belgian UFO wave
- Edward Ruppelt
- Extraterrestrial UFO hypothesis
- Flight 105 UFO sighting
- Foo fighter
- Ghost rockets
- Gulf Breeze UFO incident
- Have We Visitors From Space?
- Kenneth Arnold
- Kenneth Arnold UFO sighting
- List of UFO-related hoaxes
- Maury Island incident
- Michigan "swamp gas" UFO reports
- Mystery airship
- Pascagoula incident
- Passaic UFO photographs
- Phoenix Lights
- Psychosocial UFO hypothesis
- Rhodes UFO photographs
- Roswell incident
- The Report on Unidentified Flying Objects
- Twin Falls saucer hoax
- UFO
- UFO conspiracy theories
- UFO sightings in Brazil
- UFO sightings in Greece
- UFO sightings in the United Kingdom
- Wired (magazine)
- Wonsan-Sunchon UFO incident