| MTR | meter | 米 |
| MTR | Mass Transit Railway | 地下鐵路 |
| MTR | Mean Time of Remove | 平均拆卸时间 |
| MTR | Miniature Temperature Recorder | 微型温度记录仪 |
| MTR | Motor | 发动机 |
| MTR | Material Testing Reactor | 材料测试反应器 |
| MTR | Material Test Report | 材料试验报告 |
| MTR | Medical Transcriptionist | 医学转录员 |
| MTR | Minimum Technical Requirement | 最低技术要求 |
| MTR | Minimum Technology Requirement | 最低技术要求 |
| MTR | Mobile Termination Rate | 移动终端速率 |
| MTR | Mean Time to Restore | 平均恢复时间 |
| MTR | Mid-Term Review | 中期审查 |
| MTR | Marginal Tax Rate (How the government taxes us in brackets) | 边际税率（括号内的政府如何向我们征税） |
| MTR | Magnetic Tape Recorder | 磁带记录器 |
| MTR | Moon Town Records | 月亮镇记录 |
| MTR | Magnetization Transfer Ratio | 磁化转移比 |
| MTR | Military Technical Revolution | 军事技术革命 |
| MTR | Magnetic Tape Recording | 磁带录音 |
| MTR | Motor Technical Reference | 电机技术参考 |
| MTR | Mavalli Tiffin Rooms | Mavalli Tiffin客房 |
| MTR | Major Transportation Route | 主要运输路线 |
| MTR | Monteria, Colombia | 哥伦比亚蒙特里亚 |
| MTR | Marginal Tax Revenue | 边际税收 |
| MTR | Masses, Tenderness, Rebound | 质量、柔软度、回弹 |
| MTR | Meet the Robinsons (animated film) | 《遇见罗宾森》（动画电影） |
| MTR | Ministry of Tourism | 旅游部 |
| MTR | Merchandise Transfer Report | 商品转移报告 |
| MTR | Miller Tabak Roberts Securities, LLC | Miller Tabak Roberts证券有限责任公司 |
| MTR | Military Training Route | 军事训练路线 |
| MTR | Museum of Television and Radio | 电视和广播博物馆 |
| MTR | Museum Of Tv And Radio | 电视和广播博物馆 |
| MTR | Manufacturer's Test Results (oilfield casing) | 制造商的测试结果(油田套) |
| MTR | Materials Test Reactor | 材料试验反应器 |
| MTR | Military Training Routes | 军事训练路线 |
| MTR | Military Training for Ratings | 分级军事训练 |
| MTR | Mesa Realty Trust | 梅萨房地产信托 |
| MTR | Months To Roll | 滚动月数 |
| MTR | Multi Track Recorder | 多轨道记录仪 |
| MTR | monocyte turnover rate | 单核细胞周转率 |
| MTR | mechanothermoreceptor | 机械其他感受器 |
| MTR | Materials Technology Research | 材料技术研究 |
| MTR | mucus transport rate | 粘液输送率 |
| MTR | meinicke turbidity reaction | 梅尼克浊度反应 |
| MTR | Metallurgical Test Report | 冶金试验报告 |
| MTR | Montour Railroad Company | 蒙图尔铁路公司 |
| MTR | Master in Translational Research | 翻译研究硕士 |
| MTR | Motion to Revoke (bail or probation) | 撤销动议（保释或缓刑） |
| MTR | Mandatory Turn-In Repairable | 强制上缴可维修 |
| MTR | Multiple Threat Response | 多重威胁响应 |
| MTR | Motorized Transportation Regiment (Iraqi Transportation Corps) | 机动运输团（伊拉克运输队） |
| MTR | Missile Tracking Radar | 导弹跟踪雷达 |
| MTR | Marine Transportation Related (EPA) | 海洋运输相关（EPA） |
| MTR | Mavalli Tiffin Room | Mavalli Tiffin室 |
| MTR | Multi-User Transmitted Reference | 多用户传输参考 |
| MTR | Mobile Traffic Recording (collects all uplink information for a specific operator defined GSM mobile phone) | 移动交通记录（收集特定运营商定义的GSM移动电话的所有上行链路信息） |
| MTR | Mummy: the Resurrection (game) | 木乃伊：复活（游戏） |
| MTR | Maximun Thermal Retention (Columbia) | 最大热保持率（哥伦比亚） |
| MTR | Mountaintop Removal (coal mining method) | 山顶清除（采煤法） |
| MTR | Majandustegevuse Registrister | Majandusegevuse寄存器 |
| MTR | Maximum Tolerable Risk | 最大可容忍风险 |
| MTR | Maximum Transition Run | 最大过渡运行 |
| MTR | Module Test and Repair | 模块测试和维修 |