| AACS | Asynchronous Address Communication System | 异步地址通信系统 |
| AACS | Airways and Air Communications Service | （美国）航路与航空通讯联络处 |
| AACS | Army Alaska Communication System | 美军阿拉斯加通信系统 |
| AACS | Automatic Area Control System | 自动地区控制系统 |
| AACS | American Association of Cosmetology Schools | 美国美容学校协会 |
| AACS | Association for Arkansas Cave Studies, Inc. | 阿肯色州洞穴研究协会。 |
| AACS | Armenian American Cultural Society | 亚美尼亚裔美国文化协会 |
| AACS | American Association of Christian Schools | 美国基督教学校协会 |
| AACS | Airways & Air Communications Service | 航空公司及航空通讯服务 |
| AACS | Authentication and Access Control System | 认证和访问控制系统 |
| AACS | Airborne Astrographic Camera System | 机载天体照相系统 |
| AACS | Asynchronous Address Communication Systems | 异步地址通信系统 |
| AACS | Automated Analog Circuit Synthesis | 自动模拟电路合成 |
| AACS | Attitude & Articulation Control Subsystem | 态度和清晰度控制子系统 |
| AACS | Anti Aircraft Control Station | 防空控制站 |
| AACS | Airborne Activity Confinement System | 机载活动限制系统 |
| AACS | American Academy of Cosmetic Surgery | 美国美容外科学会 |
| AACS | Associate of Australian Computer Society | 澳大利亚计算机学会会员 |
| AACS | Automated Airspace Computer System | 自动化空域计算机系统 |
| AACS | American Academy of Clinical Sexologists | 美国临床性学家学会 |
| AACS | Attitude and Articulation Control Subsystem | 姿态和铰接控制子系统 |
| AACS | Ambient Air Control System | 环境空气控制系统 |
| AACS | Automated Access Control System | 自动门禁系统 |
| AACS | Attitude and Antenna Control Subsystem | 姿态和天线控制子系统 |
| AACS | Army Airways Communications System | 陆军航路通信系统 |
| AACS | Acquisition Advice Code System | 采购建议代码系统 |
| AACS | Airborne Air Control Squadron | 空中航空管制中队 |
| AACS | Alta Autoridade para a Comunicação Social (Portugal) | Alta Autoridade para a Comunicação Social (Portugal) |
| AACS | Applied Aged Care Solutions (Victoria, Australia) | 应用老年护理解决方案（澳大利亚维多利亚州） |
| AACS | Auxiliary Attitude Control System | 辅助姿态控制系统 |
| AACS | Advanced Access Content System (standard for content distribution and digital rights management) | 高级访问内容系统（内容分发和数字权限管理的标准） |