Geon may refer to:
Geon (geology), a time interval Gun (Korean name), a Korean given name Geon (physics), a hypothetical gravitational or electromagnetic wave packet which is held together in a confined region by the gravitational attraction of its own field energy Geon (psychology), a geometrical primitive out of which everyday objects can be represented Geon, short for geonim, rabbis in the medieval era Geon, a character from the King of the Monsters series of video games Geon: Emotions, a video game for Xbox 360's Xbox Live Arcade service Geon (video game), for PlayStation 3's PlayStation Network and Nintendo Wii