DSG may stand for:

Companies and organisations Caldera Digital Research Systems Group, a former department of Caldera Defence Support Group, the Trading Fund of the UK Ministry of Defence Delaware State Guard, the inactive state defense force of Delaware Democratic Study Group, a legislative service organization (LSO) in the United States House of Representatives Deutsche Schlafwagen- und Speisewagengesellschaft, the German Sleeper and Dining Car Company Dick's Sporting Goods, a sporting goods retailer DSG International (retailer), Dixons Stores Group, a European retailer DSG International Ltd., a Hong Kong–based manufacturer Novell Desktop Systems Group, a former department of Novell

Health Dacryoscintigraphy, a nuclear medicine scan of the lacrimal system Desogestrel, a progestin used in birth control pills

Science and technology Lunar Gateway, a crewed cislunar space station planned by NASA, formerly Deep Space Gateway DOCSIS Set-top Gateway, a technical specification Direct-shift gearbox, an electronically controlled, dual-clutch, multiple-shaft, automatic gearbox Disodium glutamate, a salt of glutamic acid

Other uses David Shankle Group, a heavy metal band Deutsche Schule Genf, a German international school near Geneva, Switzerland Dick's Sporting Goods Park, a soccer-specific stadium near Denver, Colorado Diocesan School for Girls (disambiguation), various schools Direct-Shift Gearbox, a type of automotive gearbox from Volkswagen Group Dame of Saint Gregory, female variant of class in one of the orders of knighthood of the Holy See