XG

XG may refer to:

* Asteroid 2006 XG1, a near earth object (Amor asteroid) with a very small, but non-zero, chance of impacting the earth in 2041.
* Hyundai XG, a Hyundai car model
* Yamaha XG, a Yamaha extension to General MIDI
* Extreme-G, a video game
* Clickair IATA code
* xG Technology, Inc., a wireless communications company
* Abbreviation of Xenogears
* DARPA's DARPA XG (neXt Generation) communication program