| Acronym | Definition |
|---|
| OAM | Operations Administration and Maintenance (ethernet protocol) |
| OAM | Medal of the Order of Australia |
| OAM | Oracle Access Manager |
| OAM | Order of Australia Medal |
| OAM | Office of Alternative Medicine (NIH) |
| OAM | Office of Acquisition Management |
| OAM | Object Authority Manager |
| OAM | Operations Administration and Maintenance |
| OAM | Operation and Maintenance |
| OAM | Online Account Management |
| OAM | Optional Assessment Material |
| OAM | Oracle Applications Manager |
| OAM | Optical and Atm |
| OAM | Once A Month |
| OAM | On A Mission |
| OAM | Office of Air Management (Indiana) |
| OAM | Object Attribute Memory (computing) |
| OAM | Orbital Angular Momentum |
| OAM | Osaka Auto Messe (auto show; Japan) |
| OAM | Older Americans Month (May) |
| OAM | Oakland Art Murmur (est. 2006; Oakland, CA) |
| OAM | Order of the Archangel Michael (gaming guild) |
| OAM | ORIX Asset Management (Japan) |
| OAM | Open Arms Ministry (Weidman, MI) |
| OAM | Optimized Adaptive Modulation (electronics) |
| OAM | Office of Aerospace Medicine (Washington, DC) |
| OAM | Object Allocation Map (Sybase) |
| OAM | Operational Airworthiness Manual (Canada) |
| OAM | Okasan Asset Management Co., Ltd. (Japan) |
| OAM | Orthopedic Appliance Mechanic (US Navy) |
| OAM | Optical Amplifier Module |
| OAM | Organisation of Active Micronations (est. 2009) |
| OAM | Optional Assessment Materials |
| OAM | Operational Asset Management |
| OAM | Online Access Manager |
| OAM | Operations and Maintenance cell (ATM) |
| OAM | Opportunity, Ability and Motivation (behavior framework) |
| OAM | Officer Assignment Model |
| OAM | Orthogonal Amplitude Modulation |
| OAM | Open Audience Manager (software) |
| OAM | Oracle Access Management |
| OAM | Occupational Assessment & Modification |