| SAR | Special Administrative Region | 特别行政区 |
| SAR | Search And Rescue | 搜索和援救 |
| SAR | Segmetation and reassembly sublayer | 拆装子层 |
| SAR | Specific Absorption Rate | 比吸收率 |
| SAR | The Parabolic Time/Price System | 抛物线指标 |
| SAR | Structure-Activity Relationship | 结构活动关系 |
| SAR | Specific Absorption Rate (measure of the rate of absorption of RF energy in the body) | 比吸收率（人体内射频能量吸收率的测量） |
| SAR | Sulfuric Acid Recovery (hydrocarbon processing application) | 硫酸回收（碳氢化合物处理应用） |
| SAR | Sons of the American Revolution | 美国革命之子 |
| SAR | Summary Annual Report | 年度总结报告 |
| SAR | Semi-Autonomous Robotics | 半自主机器人 |
| SAR | Security Assessment Report | 安全评估报告 |
| SAR | Staff Appraisal Report | 员工评估报告 |
| SAR | Site Assessment Report | 现场评估报告 |
| SAR | Subject Analysis and Retrieval | 主题分析和检索 |
| SAR | Site Access Restricted | 站点访问受限 |
| SAR | Summary Analysis Report | 汇总分析报告 |
| SAR | Single Access Return | 单通道返回 |
| SAR | South Australian Railways (South Australia, Australia) | 南澳大利亚铁路（南澳大利亚、澳大利亚） |
| SAR | Singapore Armoured Regiment | 新加坡装甲团 |
| SAR | Service Archive (JBoss Server) | 服务存档（JBoss服务器） |
| SAR | Self-Assessment Report | 自我评估报告 |
| SAR | Societatea Academica Romana (Romanian) | Societatea Academica Romana（罗马尼亚） |
| SAR | Seasonal Allergic Rhinitis | 季节性过敏性鼻炎 |
| SAR | Service Aptitude Rating | 服务能力等级 |
| SAR | Storage Address Register | 存储地址寄存器 |
| SAR | Sysout Archival and Retrieval | 系统存档和检索 |
| SAR | Species-Area Relationship (ecology) | 物种面积关系（生态学） |
| SAR | Semi-Active Radar | 半主动雷达 |
| SAR | Semi-Annual Report | 半年度报告 |
| SAR | Sarikoli (linguistics) | Sarikoli（语言学） |
| SAR | Shift Amount Register | 移位量寄存器 |
| SAR | Sodium Adsorption Ratio unit | 钠吸附比单位 |
| SAR | Service Authorization Request | 服务授权请求 |
| SAR | Supplied-Air Respirator (US OSHA) | 供气呼吸器（美国OSHA） |
| SAR | Supply Assistance Request | 供应协助请求 |
| SAR | Software Answer Supervision | 软件应答监督 |
| SAR | Sea Air Rescue | 海空救援 |
| SAR | Share Appreciation Right | 股份增值权 |
| SAR | Site & Acceptance Review | 网站和接受审查 |
| SAR | Subsequent Applications Review | 后续申请审查 |
| SAR | Stock-Adjustment Request | 库存调整请求 |
| SAR | special access requirement (US DoD) | 特殊访问要求（美国国防部） |
| SAR | Scientific Absorption Rate | 科学吸收率 |
| SAR | Security Access Requirement (code) | 安全访问要求（代码） |
| SAR | Single Aliquot Regeneration | 单个等分试样再生 |
| SAR | Ship Alteration Request | 船舶变更请求 |
| SAR | Squad Automatic Rifle | 小队自动步枪 |
| SAR | Stichting Architecten Research (Foundation for Architects' Research) | Stichting基础研究(Architecten建筑师的研究) |
| SAR | Special Action Report | 特别行动报告 |
| SAR | Salanter Akiba of Riverdale (Riverdale, New York) | Riverdale的Salanter Akiba（纽约Riverdal） |
| SAR | Ship Alteration Record | 船舶变更记录 |
| SAR | Safety Analysis Report | 安全分析报告 |
| SAR | Sua Altezza Reale (His/Her Royal Highness) | Altezza Reale的(他/她参加) |
| SAR | Schedule Add Request | 计划添加请求 |
| SAR | Stop and Reverse (trading markets; stocks, bonds, commodities) | 止损和反转（交易市场；股票、债券、商品） |
| SAR | Significant Action Report | 重大行动报告 |
| SAR | Specific Appropriation Request | 具体拨款请求 |
| SAR | Student Aid Report | 学生援助报告 |
| SAR | Saudi Arabian Riyal | 沙特阿拉伯里亚尔 |
| SAR | Stock Appreciation Right | 股票增值权 |
| SAR | Service Activity Report | 服务活动报告 |
| SAR | Shift Arithmetic Right | 右移算术 |
| SAR | Side-looking Aperture Radar | 侧视孔径雷达 |
| SAR | System Activity Reporting | 系统活动报告 |
| SAR | South African Republic | 南非共和国 |
| SAR | Software Action Request | 软件操作请求 |
| SAR | Situation Action Result | 态势行动结果 |
| SAR | Significant Activities Report | 重大活动报告 |
| SAR | Software Assurance Requirement | 软件保证要求 |
| SAR | Selected Acquisition Report | 所选采集报告 |
| SAR | Stable Auroral Red | 稳定极光红 |
| SAR | Systems Assurance Review | 系统保证审查 |
| SAR | Segmentation And Reassembly | 分段和重新组装 |
| SAR | Safety Assessment Report | 安全评估报告 |
| SAR | Special Autonomous Region | 特别自治区 |
| SAR | Syrian Arab Republic | 阿拉伯叙利亚共和国 |
| SAR | Sarcosinemia | 肉瘤病 |
| SAR | System Address Register | 系统地址寄存器 |
| SAR | Stomach Acid Reflux | 胃酸反流 |
| SAR | Situation Awareness Report | 态势感知报告 |
| SAR | Signaling Access Routers (Sprint) | 信令接入路由器（Sprint） |
| SAR | Sample Assessment Report | 评估报告样本 |
| SAR | Special Aeronautical Requirement | 特殊航空要求 |
| SAR | Safety Appraisal Report | 安全评估报告 |
| SAR | Simulated Acidic Rain | 模拟酸雨 |
| SAR | Schedule and Requests | 计划和请求 |
| SAR | Subscriber Application Router | 订户应用路由器 |
| SAR | System Acquisition Report | 系统采集报告 |
| SAR | Sub-Account Representative | 子账户代表 |
| SAR | System Acquired Resistance | 系统获得阻力 |
| SAR | Start Action Request | 启动操作请求 |
| SAR | System Access Request | 系统访问请求 |
| SAR | School Accountability Report | 学校问责报告 |
| SAR | Short Annular Ring | 短环形环 |
| SAR | Supplies Account Representative | 供应品客户代表 |
| SAR | Shared Accommodation Rack | 共享住宿架 |
| SAR | Solution Assurance Review | 解决方案保证审查 |