Found 5 full forms for GRTA
| Term | Full Form | Category |
|---|---|---|
| GRTA | General Refinery Turn Around 
| Others |
| GRTA | Georgia Regional Transportation Authority
| Others |
| GRTA | Ginna Retirement Transmission Alternative
| Others |
| GRTA | Greenwich Riding and Trails Association
| Others |
| GRTA | Guam Regional Transit Authority
| Others |