GACA
| Acronym | Definition |
|---|---|
| GACA | General Authority of Civil Aviation (Saudi Arabia) |
| GACA | Georgia Athletic Coaches Association (Marietta, GA) |
| GACA | Georgia Addiction Counselors Association |
| GACA | Gainesville Association for the Creative Arts (Gainesville, FL) |
| GACA | German American Citizens Association (Kansas City, MO) |
| GACA | Great Ape Conservation Act of 2000 |