| Acronym | Definition |
|---|
| GCTA➣Greater Cincinnati Telangana Association (Cincinnati, OH) |
| GCTA➣Greater Cincinnati Tennis Association (Ohio) |
| GCTA➣Genas Contrôle Technique Automobile (French automotive testing company) |
| GCTA➣Gulf Coast Trenchless Association (Texas) |
| GCTA➣Greater Columbus Tennis Association (Ohio) |
| GCTA➣General Commission for Tourism and Antiquities (Saudi Arabia) |
| GCTA➣Grand Canyon Title Agency, Inc. (Arizona) |
| GCTA➣Garden City Teachers Association |
| GCTA➣Greenville County Taxpayers Association |