| OAM | Operations，Administration and Maintenance | 操作、管理和维护 |
| OAM | Older Americans Month (May) | 美国老年人月（5月） |
| OAM | Object Access Model | 对象访问模型 |
| OAM | Operation And Maintenance | 操作和维护 |
| OAM | Operation Administration And Maintenance | 运营管理和维护 |
| OAM | Office of Aviation Medicine | 航空医学办公室 |
| OAM | Office of Acquisitions Management | 收购管理办公室 |
| OAM | Object Attribute Memory | 对象属性内存 |
| OAM | Oamaru, New Zealand | 新西兰Oamaru |
| OAM | Operations and Maintenance cell (ATM) | 操作和维护单元（ATM） |
| OAM | Outcomes And Measurement | 结果和测量 |
| OAM | Officer Assignment Model | 官员分配模型 |
| OAM | Outdoor Advertising Magazine | 户外广告杂志 |
| OAM | Optical Authoring Manager | 光学创作经理 |
| OAM | Oracle Access Manager | Oracle访问管理器 |
| OAM | Orthogonal Amplitude Modulation | 正交幅度调制 |
| OAM | Office of Aerospace Medicine (Washington, DC) | 航空航天医学办公室（华盛顿特区） |
| OAM | Order of Australia Medal | 澳大利亚勋章 |
| OAM | On A Mission | 关于任务 |
| OAM | Orbital Angular Momentum | 轨道角动量 |
| OAM | Optical Amplifier Module | 光放大器模块 |
| OAM | Once A Month | 每月一次 |
| OAM | Operational Asset Management | 运营资产管理 |
| OAM | Operational Administration and Maintenanc | 运营管理和维护 |
| OAM | Office of Alternative Medicine (NIH) | 替代医学办公室（NIH） |
| OAM | Medal of the Order of Australia | 澳大利亚勋章 |
| OAM | Operations, Administration & Maintenance | 业务、管理和维修 |
| OAM | Online Access Manager | 在线访问管理器 |
| OAM | Oracle Access Management | Oracle访问管理 |
| OAM | Optional Assessment Materials | 可选评估材料 |
| OAM | Object Allocation Map (Sybase) | 对象分配映射（Sybase） |
| OAM | Occupational Assessment & Modification | 职业评估和修改 |