GACS
| Acronym | Definition |
|---|---|
| GACS | Generic Atn Communication Service |
| GACS | Greater Atlanta Christian School (Georgia) |
| GACS | Georgia Association of Convenience Stores |
| GACS | Grove Avenue Christian School (Richmond, VA) |
| GACS | Gun Alignment and Control System |
| GACS | Gaussian Auto-Regressive and Chi-Square Process (MPEG) |
| GACS | GPEOH Automated Calibration System |
| GACS | Global Alliance of Classification Societies (UK) |