| REA | Railway Express Agency | 美国捷运公司 |
| REA | Rural Education Association | 农村教育协会 |
| REA | Rural Electrification Administration | 农村电气化管理局 |
| REA | Retired Enlisted Association | 退休登记协会 |
| REA | Research and Education Association | 研究与教育协会 |
| REA | Retired Educators Association | 退休教育工作者协会 |
| REA | Research And Educational Association | 研究与教育协会 |
| REA | Rural Electric Association | 农村电力协会 |
| REA | Rocket Engine Assembly | 火箭发动机组件 |
| REA | Registered Environmental Assessor | 注册环境评估师 |
| REA | Refugee Escape Act | 《难民逃亡法》 |
| REA | Repertorio Economico Amministrativo | 经济弹药库 |
| REA | Radiological Engineering Assessment | 放射工程评估 |
| REA | Radiological Emergency Assistance (team) | 放射应急援助（团队） |
| REA | Retirement Equity Act of 1984 | 1984年《退休权益法》 |
| REA | Request for Engineering Action | 工程行动请求 |
| REA | Reduced Earnings Allowance (retired on medical grounds) | 减少收入津贴（因医疗原因退休） |
| REA | Rapid Environmental Assessment | 快速环境评估 |
| REA | Reentry Angle | 再入角度 |
| REA | US Revenue Beer (Scott Catalogue prefix; philately) | 美国收入啤酒（斯科特目录前缀；集邮） |
| REA | Rib Eye Area | 肋骨眼部区域 |
| REA | Resources, Events, Agents | 资源、事件、代理 |
| REA | Royal Europe Airlines | 皇家欧洲航空公司 |
| REA | Riot Engine Animation | 暴动引擎动画 |
| REA | rearrangement | 重排 |
| REA | radiation emergency area | 辐射应急区 |
| REA | Restriction Endonuclease Analysis | 限制性内切酶分析 |
| REA | renal anastomosis | 肾吻合 |
| REA | right ear advantage | 右耳优势 |
| REA | Reading Excellence Act | 阅读卓越法案 |
| REA | Registro de Economistas | 经济登记处 |
| REA | Resources, Events, and Agents | 资源、事件和代理 |
| REA | Rail Express Agency | 铁路快递公司 |
| REA | Red Equipment Area | 红色设备区 |
| REA | Rapid Ecological Assessment | 快速生态评估 |
| REA | Responsible Engineering Authority | 负责工程部门 |
| REA | Block-Repeat End Address Register | 块重复结束地址寄存器 |
| REA | Ralph Engelstad Arena (University of North Dakota, Grand Forks) | 拉尔夫·恩格尔斯塔德竞技场（北达科他大学，大福克斯） |
| REA | Report Enemy Activity | 报告敌方活动 |
| REA | Remote Electronic Access | 远程电子访问 |
| REA | Rauchgas-Entschwefelungs-Anlage (power plant) | Rauchgas Entschwefelungs Anlage（发电厂） |
| REA | Ribeye Area | 肋眼区域 |
| REA | Remote Entity Approximation | 远程实体近似 |
| REA | Request for Equitable Adjustment | 公平调整请求 |
| REA | Rockwell Electronics Australasia Pty. Ltd. | 罗克韦尔电子澳大利亚有限公司。有限公司 |
| REA | Research, Evaluation & Assessment | 研究、评估和评价 |
| REA | Reciprocal Easements Agreement | 互惠地役权协议 |
| REA | Russian Education Academy | 俄罗斯教育学院 |
| REA | Resident Evil: Apocalypse (movie) | 生化危机：启示录（电影） |
| REA | Real Estate Agent | 房地产经纪人 |
| REA | radioenzymatic assay | 放射酶测定 |