| APTA | Autonomous Perfecture Tourism Administration | 自治州旅游局 |
| APTA | Alberta Play Therapy Association | 阿尔伯塔省游戏治疗协会 |
| APTA | American Platform Tennis Association | 美国平台网球协会 |
| APTA | Association for the Promotion of Tourism to Africa | 非洲旅游促进协会 |
| APTA | American Physical Therapy Association | 美国物理治疗协会 |
| APTA | Association of Private Tourism Agencies | 私人旅游机构协会 |
| APTA | American Polarity Therapy Association | 美国极性治疗协会 |
| APTA | Alabama Physical Therapy Association | 阿拉巴马州物理治疗协会 |
| APTA | Asia Pacific Tourism Association | 亚太旅游协会 |
| APTA | Association for the Preservation of Tennessee Antiquities | 田纳西州文物保护协会 |
| APTA | Atlantic Provinces Trucking Association | 大西洋省卡车运输协会 |
| APTA | American Public Transit Association (now the American Public Transportation Association) | 美国公共交通协会（现为美国公共运输协会） |
| APTA | American Public Transportation Association (formerly the American Public Transit Association) | 美国公共交通协会（前身为美国公共运输协会） |
| APTA | Advanced Paperless Technology Associates | 高级无纸技术协会 |
| APTA | American Public Transit Association | 美国公共交通协会 |
| APTA | American Public Transportation Association | 美国公共交通协会 |
| APTA | Alligator Point Taxpayers' Association | 鳄鱼点纳税人的协会 |
| APTA | Alabama Police Trainer's Association | 阿拉巴马州警方讲师协会 |
| APTA | Angst, Pain, and Torture Association | 愤怒、痛苦和酷刑协会 |
| APTA | Access Piqua Television Association | 访问Piqua电视协会 |
| APTA | Aptitude Area | 能力倾向区 |
| APTA | Ajax Pickering Transit Authority | Ajax Pickering运输局 |
| APTA | AgÊncia Paulista de Tecnologia dos AgronegÓcios | AgÊncia Paulista de Tecnologia dos AgronegÓcios |
| APTA | Automated Patrol Telescopes Australia | 澳大利亚自动巡视望远镜 |
| APTA | All Purpose Training Aid | 通用训练辅助 |
| APTA | Association de PrÉvention des Traumatismes Auditifs | Association de PrÉvention des Traumatismes Auditifs |
| APTA | Associação para Prevenção e Tratamento da Aids e SaÚde Preventiva | Associação para Prevenção e Tratamento da Aids e SaÚde Preventiva |
| APTA | (3-acrylamidopropyl)trimethylammonium | （3-丙烯酰胺丙基）三甲基铵 |
| APTA | Applied Petroleum Technology Academy | 应用石油技术学院 |
| APTA | Austrian Platform for Telematics Application | 奥地利远程通信应用平台 |