GSTA
| Acronym | Definition |
|---|---|
| GSTA | Gay Straight Trans Alliance |
| GSTA | Giant Screen Theater Association (now Giant Screen Cinema Association) |
| GSTA | Glutathione S-Transferase Alpha |
| GSTA | Goods and Services Tax Act (Australia) |
| GSTA | Garden State Towman’s Association |
| GSTA | Ground Surveillance & Target Acquisition |
| GSTA | Girl Scout Troop Assistant |