ACGS
| Acronym | Definition |
|---|---|
| ACGS | American-Canadian Genealogical Society |
| ACGS | Anglican Church Grammar School |
| ACGS | Assistant Chief of the General Staff (British Army position) |
| ACGS | A Chinese Ghost Story (film) |
| ACGS | Ashtabula County Genealogical Society, Inc. |
| ACGS | Aerospace Cartographic and Geodetic Service (US Air Force; now defunct) |