| Acronym | Definition |
|---|
| GCAC➣Gulf Coast Athletic Conference |
| GCAC➣Greater Columbus Arts Council |
| GCAC➣Generic Connection Admission Control |
| GCAC➣Garde Côtière Auxiliaire Canadienne (French: Canadian Coast Guard Auxiliary) |
| GCAC➣Golf Course Advisory Committee (various locations) |
| GCAC➣Generic Call Admission Control (Sprint-ATM) |
| GCAC➣Genoa City Athletic Club (The Young and the Restless; TV daytime drama) |
| GCAC➣Glacier Country Avalanche Center, Inc. (Montana) |
| GCAC➣Glaucoma Crónico de Ángulo Cerrado |
| GCAC➣Gold Coast Arts Center (Australia) |
| GCAC➣Greater Capital Area Chapter of the American Nurses Association (California) |
| GCAC➣Global Connection Admission Control |
| GCAC➣Gwynedd and Clwyd Association of Craftworkers (UK) |