| MRR | maintenance, repair and replace | 维护、修理和替换 |
| MRR | Microfilm Reduction Ratio | 缩微胶片缩小率 |
| MRR | Marginal Rate of Return | 边际收益率 |
| MRR | Manufacturing Readiness Review | 制造准备审查 |
| MRR | Motivation Recognition and Rewards (human resources) | 激励认可和奖励（人力资源） |
| MRR | Monitoring, Recordkeeping, and Reporting | 监控、记录和报告 |
| MRR | Maritime Radar Reconnaissance | 海上雷达侦察 |
| MRR | Mission Readiness Review | 任务准备审查 |
| MRR | Minimum Rediscount Rate | 最小重新计数率 |
| MRR | M.R. Radha (Indian actor) | M、 R.Radha（印度演员） |
| MRR | Medium Range Radar | 中程雷达 |
| MRR | Master Resale Rights | 主转售权 |
| MRR | Maintenance Replacement Rate | 维护更换率 |
| MRR | Mean Reciprocal Rank | 平均倒数排名 |
| MRR | Minimum Risk Route | 最低风险路线 |
| MRR | Mission Requirements Request | 任务需求请求 |
| MRR | Medical Readiness Review | 医疗准备审查 |
| MRR | Motorized Rifle Regiment | 机动步枪团 |
| MRR | Mechanical Reliability Report | 机械可靠性报告 |
| MRR | marrow release rate | 骨髓释放率 |
| MRR | Mid- Atlantic Realty Trust | 大西洋中部房地产信托 |
| MRR | Management Requirements Review | 管理要求评审 |
| MRR | Montana River Realty | 蒙大拿河房地产 |
| MRR | Multi-Rate Ratio | 多费率比率 |
| MRR | Materials Reclamation Or Recovery | 材料回收或回收 |
| MRR | maximum rate of rise | 最大上升率 |
| MRR | Metric Reaming Rate | 公制铰孔率 |
| MRR | medical research reactor | 医学研究反应堆 |
| MRR | Market Research Report | 市场研究报告 |
| MRR | Macara, Ecuador | 厄瓜多尔马卡拉 |
| MRR | Mission Readiness Request | 任务准备请求 |
| MRR | Market Research Reports | 市场研究报告 |
| MRR | Multi-Role Radar | 多用途雷达 |
| MRR | Mark Release Recapture (animal population studies) | 标记释放再捕获（动物种群研究） |
| MRR | Minimum Reserve Requirements | 最低储备要求 |
| MRR | Maximum Rock'n'Roll (print zine) | 最大的岩石元素召唤魔法招出的元素'Roll(印刷杂志) |
| MRR | Management Research Report | 管理研究报告 |
| MRR | Monthly Recurring Revenue | 每月经常性收入 |
| MRR | Model Railroader Magazine | 模型Railroader杂志 |
| MRR | Material Recovery Rate | 材料回收率 |
| MRR | Milestone Readiness Review | 里程碑准备审查 |
| MRR | Management Recommendation Report | 管理建议报告 |
| MRR | MacRitchie Reservoir (Singapore) | 麦克里奇水库（新加坡） |
| MRR | Material Review Report | 材料审查报告 |
| MRR | Multi-Role Radio | 多角色广播 |
| MRR | Material Removal Rate | 材料去除率 |
| MRR | Materiel Readiness Report | 物资准备情况报告 |
| MRR | Minimum Residual Radioactivity | 最小残余放射性 |
| MRR | Mary Rolph Resources | Mary Rolph资源 |
| MRR | Mad River Rocket (Sled Company; Warren, VT) | Mad River Rocket（雪橇公司；VT沃伦） |
| MRR | Material Receiving Report | 材料接收报告 |