| Acronym | Definition |
|---|
| AGCS | Accord General sur le Commerce des Services (French: General Agreement on Trade in Services) |
| AGCS | Advanced Graphic Chipset |
| AGCS | Active Geometry Control Suspension |
| AGCS | Allianz Global Corporate & Specialty (insurance provider) |
| AGCS | Antarctica and the Global Climate System |
| AGCS | Association of Golf Club Secretaries (UK) |
| AGCS | Acordo Geral sobre Comércio de Serviços (Portuguese: General Agreement on Trade in Services; World Trade Organization) |
| AGCS | Acuerdo General sobre Comercio en Servicios (Spanish: General Agreement on Trade in Services; World Trade Organization) |
| AGCS | Aggregate Gradation Control System |
| AGCS | Automatic Guidance and Control System |
| AGCS | Automatic Ground Control Station |
| AGCS | Allied Signal Guidance Control Systems |
| AGCS | Senior Chief Aerographer's Mate (Naval rating) |
| AGCS | Air-Ground Communications Safety |
| AGCS | Artificial Gravity Centrifuge System |
| AGCS | A Girl Called Sam (music blog) |
| AGCS | Antenna-Geometry Cross Section |
| AGCS | Advanced Guidance and Control System |
| AGCS | AT&T/GTE (General Telephone & Electronics) Communication Systems (telecommunications) |