| Acronym | Definition |
|---|
| GCGA➣Gold Coast Greyhound Adoptions, Inc. (Florida) |
| GCGA➣Greater Cincinnati Golf Association (Cincinnati, OH) |
| GCGA➣Greater Cleveland Growth Association |
| GCGA➣Gulf Citrus Growers Association (LaBelle, FL) |
| GCGA➣Gamma Carboxy Glutamic Acid |
| GCGA➣Guernsey Commonwealth Games Association (est. 1966) |