| GPPA | Garfield Public Preschool Annex 
| Others |
| GPPA | General Practice Psychotherapy Association
| Others |
| GPPA | Georgia Perennial Plant Association
| Others |
| GPPA | Georgia Professional Photographers Association
| Others |
| GPPA | Georgia Psychiatric Physicians Association
| Others |
| GPPA | Google Premier Partner Awards
| Others |
| GPPA | Graduate Personal Property Appraiser
| Others |
| GPPA | Greater Pittsburgh Psychological Association
| Others |
| GPPA | Grenada Planned Parenthood Association
| Others |
| GPPA | Guajome Park Primary Academy
| Others |
| GPPA | Guaranteed Professional Program Admissions
| Others |