| Acronym | Definition |
|---|
| GaPO | Gallium Orthophosphate |
| GaPO | Growth retardation-Alopecia-Pseudoanodontia-Optic atrophy (syndrome) |
| GaPO | GenetiX Alert Press Office |
| GaPO | Globalen Außerparlamentarischen Opposition |
| GaPO | Gorilla Arm Pit Odor |
| GaPO | General Aviation Program Office (NASA) |
| GaPO | Gosudarstvennyi Arkhiv Permskoi Oblasti |
| GaPO | Genis Aci Project Office |
| GaPO | Grupo de Acção para a Construção de Navios Patrulhas Oceânicos |
| GaPO | Grupo de Asalto Potencialmente Ofensivo (gaming clan) |
| GaPO | Grupo de Artistas Plásticos de Ourinhos |
| GaPO | Ground Applications Program Office |
| GaPO | Genuine Alternative for a Politicized Olongapo |
| GaPO | Get A Professional Opinion |