This is a list of notable UFO organizations located around the world.
Ufology, sometimes written UFOlogy (US: /juːˈfɑːlədʒi/ or UK: /juːˈfɒlədʒi/), is the investigation of unidentified flying objects (UFOs) by people who believe that they may be of extraordinary origins (most frequently of extraterrestrial alien visitors). While there are instances of government, private, and fringe science investigations of UFOs, ufology is generally regarded by skeptics and science educators as an example of pseudoscience.