| MRA | Mutual Recognition Arrangement | 相互承认安排 |
| MRA | Moral Re-Armament | 道德重整运动 |
| MRA | Mutual recognition agreement | 互认协议 |
| MRA | Minimum Reception Altitude | 最低接受高度 |
| MRA | Massachusetts Restaurant Association | 马萨诸塞州餐厅协会 |
| MRA | Michigan Restaurant Association | 密歇根州餐馆协会 |
| MRA | Marketing Research Association | 市场研究协会 |
| MRA | Motorcycle Riders Association | 摩托车驾驶员协会 |
| MRA | Motorcycle Roadracing Association | 摩托车道路竞赛协会 |
| MRA | Mountain Rescue Association | 山地救援协会 |
| MRA | Malaysia Retailers Association | 马来西亚零售商协会 |
| MRA | Michigan Retailers Association | 密歇根州零售商协会 |
| MRA | Masters Rowing Association | 划船大师协会 |
| MRA | Minimum Retirement Age | 最低退休年龄 |
| MRA | Military Research Associate(s) | 军事研究助理 |
| MRA | Mental Retardation Authority | 精神发育迟滞管理局 |
| MRA | Mission Risk Assessment | 任务风险评估 |
| MRA | Maximum Reimbursement Allowed (funding cap) | 允许的最高报销额（资金上限） |
| MRA | Master Residential Appraiser | 高级住宅估价师 |
| MRA | Mean Acoustic Response Axis | 平均声响应轴 |
| MRA | Magnetic Resonance Angiography | 磁共振血管造影 |
| MRA | Message Release Authority | 消息发布机构 |
| MRA | Maneuver Rights Area | 机动权利区 |
| MRA | Multiple Regression Analysis | 多元回归分析 |
| MRA | Moral Rearmament | 道德重整组织 |
| MRA | Metal Roofing Alliance | 金属屋顶联盟 |
| MRA | Magnetic Resonance Analyzer | 磁共振分析仪 |
| MRA | Multiple Recipient Address | 多个收件人地址 |
| MRA | Mineralocorticoid Receptor Antagonists | 盐皮质激素受体拮抗剂 |
| MRA | Meritor Automotive, Inc. | 美驰汽车公司。 |
| MRA | Multi Rater Assessment | 多等级评估 |
| MRA | Magnetic Resonance Analyser | 磁共振分析仪 |
| MRA | Madison Ridgeland Academy | Madison Ridgeland学院 |
| MRA | Multi-Record Action | 多记录操作 |
| MRA | Multi Roster Assistant | 多排班助理 |
| MRA | Magnetic Resonance Arteriography | 磁共振动脉造影 |
| MRA | Moving Right Along | 向右移动 |
| MRA | Membrane Reflector Antenna | 薄膜反射器天线 |
| MRA | Migration and Refugee Assistance | 移民和难民援助 |
| MRA | Main/Maximum Response Axis | 主要/最大的反应 |
| MRA | Mission Readiness Airlift | 任务准备空运 |
| MRA | Model Range of Accuracy | 模型精度范围 |
| MRA | Matrix-Rational Approximation Algorithm | 矩阵有理逼近算法 |
| MRA | Mutual Responsibility Agreement | 相互责任协议 |
| MRA | Mixture Reduction Algorithm | 混合缩减算法 |
| MRA | Mutually Restricted Access | 相互限制的访问 |
| MRA | Metro Rating Area | 地铁评级区 |
| MRA | Milestone Review and Approval | 里程碑审查和批准 |
| MRA | Mutant Registration Act (X-Men) | 突变体登记法（X战警） |
| MRA | marrow repopulating activity | 骨髓再生活性 |
| MRA | Machine Records Activity | 机器记录活动 |
| MRA | Multiple Relationship Analysis | 多重关系分析 |
| MRA | main renal artery | 肾主动脉 |
| MRA | Mission Ready & Available | 准备及提供使命 |
| MRA | Maximum Repair Allowance | 最大维修津贴 |
| MRA | Mean Reference Axis | 平均参考轴 |
| MRA | Manufacturer's Resale Agreement | 转售协议 |
| MRA | Magneto-Resistive Asymmetry (hard disk drives) | 磁阻不对称（硬盘驱动器） |
| MRA | Modernization Readiness Assessment | 现代化准备评估 |
| MRA | Module Reservoir Assembly (automotive fuel system) | 模块油箱总成（汽车燃油系统） |
| MRA | Malawi Revenue Authority | 马拉维税务局 |
| MRA | Minimum Reserve Authorization | 最低储备授权 |
| MRA | Mail Retrieval Agent (internet email) | 邮件检索代理（internet电子邮件） |
| MRA | Message Review Authority | 消息审核机构 |
| MRA | Minimal Reactance Antenna | 最小电抗天线 |
| MRA | Miniature Radar Altimeter | 小型雷达高度表 |
| MRA | Men's Rights Activist | 人的权利活动家 |
| MRA | Maintenance and Repair Area | 维护和维修区 |
| MRA | Men's Rights Agency | 人的权利机构 |
| MRA | Manual of Regulatory Audits | 监管审计手册 |
| MRA | Material Return Authorization | 材料退回授权 |
| MRA | Multi-Resolution Analysis | 多分辨率分析 |