| 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) |