| OEP | Office of Emergency Preparedness | 紧急战备局 |
| OEP | Office of Energy Planning | 能源计划局 |
| OEP | Order of Emmaus Pilgrims (United Church of Christ) | 伊曼纽斯朝圣者协会（基督联合教会） |
| OEP | original endotoxin protein | 原内毒素蛋白 |
| OEP | octaethylporphyrin | 八乙基卟啉 |
| OEP | olfactory evoked potential | 嗅觉诱发电位 |
| OEP | Original Engineered Products, Inc. | 原始工程产品公司。 |
| OEP | Outdoor Education Program | 户外教育计划 |
| OEP | Office of Enforcement Policy | 执法政策办公室 |
| OEP | Optometry Extension Program | 验光扩展计划 |
| OEP | Omission Evoked Potential | 遗漏诱发电位 |
| OEP | Original Entry Point | 原始入口点 |
| OEP | Optometric Extension Program Foundation | 光学扩展计划基金会 |
| OEP | Oil Extra Pressure | 机油额外压力 |
| OEP | Oblique Extension Principle | 倾斜延伸原理 |
| OEP | Open Encyclopedia Project | 打开百科全书项目 |
| OEP | Operational Evolution Plan | 运营发展计划 |
| OEP | Office of Environmental Policy | 环境政策办公室 |
| OEP | Optometric Extension Program | 光学扩展程序 |
| OEP | Oil Extraction Process | 采油工艺 |
| OEP | Oil of Evening Primrose (dietary supplement) | 月见草油（膳食补充剂） |
| OEP | Office of External Programs | 外部项目办公室 |
| OEP | Overhead Expense Plan | 管理费用计划 |
| OEP | Occupant Emergency Plan | 占用人应急计划 |
| OEP | Operand Execution Pipeline | 操作数执行管道 |
| OEP | Optimisation par Essaim Particulaire (French: Particle Swarm Optimization) | 优化par Essaim Particulaire（法语：粒子群优化） |
| OEP | Office of Emergency Planning | 紧急计划局 |
| OEP | Officer Exchange Program | 军官交换计划 |
| OEP | Office of Emergency Preparedness (US Department of Health and Human Services) | 应急准备办公室（美国卫生与公众服务部） |
| OEP | Open Enrollment Period (US Medicare) | 开放注册期（美国医疗保险） |
| OEP | Oxford Economic Papers | 牛津经济论文 |
| OEP | Opto-Electronic Plethysmography | 光电plethysography |
| OEP | Other Equipment & Property | 其他设备和财产 |