ASTG
| Acronym | Definition |
|---|---|
| ASTG | Aussensteuergesetz (German: Foreign Tax Law) |
| ASTG | Aerospace Test Group (NASA) |
| ASTG | Asynchronous Signal Transition Graph |
| ASTG | Auto Sales Training Group (career training) |
| ASTG | Advanced Systems Technology Group (various locations) |
| ASTG | All States Tax Guide |