USG may refer to:
Business
Unix Systems Group, a former division of Novell USG Corporation (formerly United States Gypsum Corporation), a construction materials manufacturer U.S. Gauge, a division of Ametek, manufacturer of pressure and temperature measurement products
Education University System of Georgia, United States Universities at Shady Grove, in Rockville, Maryland, United States
Music U.S.G., a hip hop collective from Stonebridge, London, see K Koke Unison Square Garden, a Japanese band Urban Sound Gallery, Brooklyn based music collaboration, see Ron Trent
Technology Medical ultrasonography, a diagnostic imaging technique Urine specific gravity, a measure of urine concentration or relative density
Other uses Ulysses S. Grant (1822–1885), US president and army general Under-Secretary-General of the United Nations, UN senior official Unhealthy for Sensitive Groups, one of NowCast air quality levels Union Saint-Gilloise, a Belgian professional football club United States Government United States Guards, World War I era US National army formation USgamer, a video game news website owned by Gamer Network Five-seven USG (United States Government), variant of the FN Five-seven