ASG may refer to:
Businesses and organizations Abu Sayyaf Group, a militant Islamist group based in the Philippines Gomera Socialist Group, (Agrupación Socialista Gomera) a left-wing Spanish political party operating on the island of La Gomera in the Canary Islands Albright Stonebridge Group (est. 2009), a global business strategy firm based in Washington, D.C., United States All Saints Greek Orthodox Grammar School, in New South Wales, Australia American Society of Genealogists Labour and Social Justice – The Electoral Alternative (Arbeit & soziale Gerechtigkeit), a left-wing German political party founded in 2005 ASG Technologies, formerly known as Allen Systems Group, headquartered in Naples, Florida AS Gien, a French association football club Astronomical Society of Glasgow Australasian Seabird Group, a special interest group of Birds Australia Avia Solutions Group global aerospace business group founded in Lithuania
Science and technology Abstract semantic graph, in computer science, a form of abstract syntax Australian Standard Garratt, a World War II-era Australian steam-engine locomotive model
Other uses ASG (band), from Wilmington, North Carolina Alsager railway station, Cheshire, England (national rail code) Ashburton Aerodrome, New Zealand (IATA airport code) Austrian Standard German, the variety of Standard German written and spoken in Austria