| Acronym | Definition |
|---|
| ASG | Allen Systems Group (Naples, FL) |
| ASG | All-Star Game (sports) |
| ASG | Assign |
| ASG | Associated Student Government |
| ASG | Area Support Group |
| ASG | Abu Sayyaf Group (terrorist group) |
| ASG | Assistant Secretary General (United Nations) |
| ASG | Assistant Secretary General |
| ASG | Astaro Security Gateway (computer security) |
| ASG | American Sewing Guild |
| ASG | Adaptive Services Grid |
| ASG | All Systems Go (band) |
| ASG | Association Suisse des Gérants de Fortune |
| ASG | Aviation Security Group |
| ASG | American Society of Genealogists |
| ASG | Air Support Group |
| ASG | Asgarv (Swedish: Laughing Out Loud) |
| ASG | Automation Systems Group |
| ASG | Afghanistan Support Group |
| ASG | Automotive Systems Group |
| ASG | Administrative Support Group |
| ASG | Advisory Services Guide |
| ASG | Assistant Surgeon General (USPHS) |
| ASG | Anti-Spam Gateway (Cloudmark) |
| ASG | Alaska Sea Grant |
| ASG | Access Security Gateway |
| ASG | Administrative Services Group |
| ASG | Austria Switzerland Germany (region) |
| ASG | Access Service Group |
| ASG | Afloat Shopping Guide |
| ASG | Automotion Systems Group |
| ASG | Auckland Speleo Group (caving hut in New Zealand) |
| ASG | Ada Structure Graph |
| ASG | Application Software Group (various companies) |
| ASG | Astronomical Society of Glasgow (UK) |
| ASG | Aeronautical Standards Group |
| ASG | Avionics Support Group, Inc (Miami, FL) |
| ASG | Ascend Signaling Gateway |
| ASG | Aspermiogenesis Factor |
| ASG | Auxiliary Steam Generator |
| ASG | Advanced Sensors Group |
| ASG | Automation Support Group (of CI) |
| ASG | Anderson Search Group (Toronto, ON, Canada) |
| ASG | Associatione Svizzera Di Gestori de Patrimoni |
| ASG | Advanced Shaft Grounding |
| ASG | Auckland Show Grounds |
| ASG | ATM Service Gateway (Sprint) |
| ASG | Application Specific Graphic |
| ASG | Axially Symmetric Gregorian (antenna) |
| ASG | Architectural Steering Group |
| ASG | Automatic Sequence Generator |
| ASG | Alberta Solicitor General (Alberta, Canada) |
| ASG | Animal Sciences Group (various organizations) |