| GAPA | Greek American Progressive Association | 希腊裔美国人进步协会 |
| GAPA | Georgia Association of Physician Assistants | 佐治亚州医师助理协会 |
| GAPA | Gay Asian Pacific Alliance | 亚太同性恋联盟 |
| GAPA | Grupo de Apoio À Prevenção À AIDS (Brazil) | Grupo de Apoio À Prevenção À AIDS (Brazil) |
| GAPA | Ground-to-Air Pilotless Aircraft | 地空无人驾驶飞机 |
| GAPA | Grandparents As Parents Again (support group) | 祖父母再次当父母（支持小组） |
| GAPA | Governance and Policy Analysis (program of study; Maastricht Graduate School of Governance) | 治理与政策分析（研究项目；马斯特里赫特治理研究生院） |