| GPTA | Gateway Plaza Tenants Association 
| Others |
| GPTA | General practice transformation agreement
| Others |
| GPTA | General Property Tax Act
| Others |
| GPTA | General Purpose Timer Array
| Others |
| GPTA | Genomic Predicted Transmitting Ability
| Others |
| GPTA | Georgia Pinhoti Trail Association
| Others |
| GPTA | Georgia Professional Tennis Association
| Others |
| GPTA | Global Professional Tutors Association
| Others |
| GPTA | Great Plains Trail Alliance
| Others |
| GPTA | Greater Pensacola Tennis Association
| Others |
| GPTA | Greater Portland Telugu Association
| Others |
| GPTA | Greater Pottstown Tennis Association
| Others |
| GPTA | Greatest Possible Tactical Achievement
| Others |
| GPTA | Guangdong Post and Telecommunication Administration
| Others |
| GPTA | Guatemala Produce Trade Association
| Others |