| Abbreviation | Definition |
|---|---|
| AGS | American Gemological Society |
| AGS | American Gerbil Society |
| AGS | American Girl Scouts |
| AGS | American Glaucoma Society |
| AGS | American Graduate School |
| AGS | American Guidance Service |
| AGS | Amusement Game Services |
| AGS | Andean Global Studies |
| AGS | Annual Growth Survey |
| AGS | Arkansas Governor's School |
| AGS | Associated Global Systems |
| AGS | Association for Gravestone Studies |
| AGS | Atmospheric and Geospace Sciences |
| AGS | Auto Gen Start |
| AGS | Automated Graphic Systems |
| AGS | Automatic Gear Shifting |
| AGS | Automatic Generator Start |
| AGS | Avtomatischeskyi Granatmyot Stankovyi |
| AGS | Global Solutions |
| AGSC | Ambystoma Genetic Stock Center |