| CAR | corrective action request | 改正行动要求 |
| CAR | Central African Republic | 中非共和国 |
| CAR | cis-acting anti-repression sequence | 顺式作用抗阻抑序列 |
| CAR | Correction Action Report | 改善报告 |
| CAR | Committed Access Rate | 承諾存取速率 |
| CAR | Channel Assignment Register | 信道分配寄存器 |
| CAR | Computer-Assisted Retrieval | 计算机辅助检索 |
| CAR | Capital Appropriation Request | 资本划拨请求 |
| CAR | carrier | 载波，支座，鸡心夹头 |
| CAR | Canadian Association of Rocketry | 加拿大岩石测量协会 |
| CAR | California Association for Rehabilitation | 加利福尼亚康复协会 |
| CAR | California Association of Realtors | 加州不动产协会 |
| CAR | Canadian Association of Radiologists | 加拿大放射科医师协会 |
| CAR | Civil Air Regulations | 民用航空条例 |
| CAR | Configuration Acceptance Review | 配置验收审查 |
| CAR | Crude Argon | 粗氩 |
| CAR | Congenital Articular Rigidity | 先天性关节僵硬 |
| CAR | Cisco Access Registrar | Cisco访问注册器 |
| CAR | Certification Approval Report/Request | 认证认可报告/要求 |
| CAR | Client Address Redistribution | 客户端地址再分配 |
| CAR | Cyclic Asset Report | 循环资产报告 |
| CAR | Consumer Asset Risk | 消费者资产风险 |
| CAR | Carian (linguistics) | 加勒比语（语言学） |
| CAR | Cilia-Associated Respiratory Bacilli | 纤毛相关呼吸杆菌 |
| CAR | Commerce Acquisition Regulations (US Department of Commerce) | 商业收购条例（美国商务部） |
| CAR | Combined Arms Rehearsal (US Army) | 联合兵种演习（美国陆军） |
| CAR | Consolidated Arrest Report | 综合逮捕报告 |
| CAR | Children of the American Revolution (Society) | 美国革命的孩子（社会） |
| CAR | Call Allocation Routing (Sprint) | 呼叫分配路由（Sprint） |
| CAR | Credit Approval Report | 信贷审批报告 |
| CAR | Command Alarm Reset | 命令报警重置 |
| CAR | Capital-at-Risk | 风险资本 |
| CAR | Contents of Address of Register (first element of generalized list in LISP) | 寄存器地址的内容（LISP中广义列表的第一个元素） |
| CAR | Collection Activity Report | 收集活动报告 |
| CAR | Contract Appraisal Report | 合同评估报告 |
| CAR | Chief of the Army Reserve (US DoD) | 陆军预备役司令（美国国防部） |
| CAR | Contract Audit Review | 合同审计审查 |
| CAR | Customer Access Record (TMN) | 客户访问记录（TMN） |
| CAR | Canadian Airborne Regiment (Canadian armed forces) | 加拿大空降团（加拿大武装部队） |
| CAR | Cellular Activation Request | 蜂窝激活请求 |
| CAR | Center for AIDS Rights (Thailand) | 艾滋病权利中心（泰国） |
| CAR | Commonwealth Automobile Reinsurers (Massachusetts) | 联邦汽车再保险公司（马萨诸塞州） |
| CAR | Corrective Account Representative | 纠正客户代表 |
| CAR | County Carlow (Ireland) | 卡洛郡（爱尔兰） |
| CAR | Corporate Account Representative | 公司客户代表 |
| CAR | Catalog Action Request | 目录操作请求 |
| CAR | Contract Action Request | 合同行动请求 |
| CAR | Comparative Analysis Report | 比较分析报告 |
| CAR | Court Appointed Receiver | 法院指定的接管人 |
| CAR | Casualty Assistance Representative | 伤亡援助代表 |
| CAR | Capital Authorisation Request | 资本授权请求 |
| CAR | Constraints and Restrictions Document | 约束和限制文件 |
| CAR | Commercial Aviation Report (magazine) | 商业航空报告（杂志） |
| CAR | Center for Automotive Research | 汽车研究中心 |
| CAR | Causal Analysis and Resolution (CMMI process area) | 原因分析和解决（CMMI过程领域） |
| CAR | Contract Administrator Representative | 合同管理员代表 |
| CAR | Capital Adequacy Ratio | 资本充足率 |
| CAR | Colt Automatic Rifle | 柯尔特自动步枪 |
| CAR | Contents of Address Register | 地址寄存器的内容 |
| CAR | Corps Automation Requirements | 兵团自动化要求 |
| CAR | Compressed Air Receiver | 压缩空气接收器 |
| CAR | Channel Address Register | 通道地址寄存器 |
| CAR | Configuration Analysis Report | 配置分析报告 |
| CAR | Computer Assisted Reporting | 计算机辅助报告 |
| CAR | Corrective Action Report | 纠正措施报告 |
| CAR | Current Action Report | 当前行动报告 |
| CAR | Caribbean | 加勒比海的 |
| CAR | carrageenin | 卡拉胶 |
| CAR | Combat Action Ribbon | 战斗行动地带 |
| CAR | Contractor's All Risks | 建筑工程一切险(建工险) |
| CAR | Cell Adhesion Regulator | 细胞粘附调节器 |
| CAR | Combat Assault Rifle | 战斗突击步枪 |
| CAR | Command Assessment Review | 司令部评定审查 |
| CAR | Centro Administrativo de la Red (Telmex) | 红色管理中心（Telmex） |
| CAR | Canadian Aviation Regulation | 加拿大航空法规 |
| CAR | Constitutively Active Androstane Receptor | 构效雄激素受体 |
| CAR | Corrective Action Study | 纠正措施研究 |
| CAR | Contract Assessment Review | 合同评估审查 |
| CAR | Coherent Antistokes Raman | 相干反斯托克斯拉曼光谱 |
| CAR | Customer Analytic Record (data warehouse/business intelligence) | 顾客分析记录(数据仓库/商业智能) |
| CAR | Collect And Return | 收集并返回 |
| CAR | Capability Assessment for Readiness | 准备就绪能力评估 |
| CAR | Concept Assessment Report | 概念评估报告 |
| CAR | Capital Asset Ratio | 资本资产比率 |
| CAR | Condition And Recommendation | 条件和建议 |
| CAR | Coxsackievirus and Adenovirus Receptor | 柯萨奇病毒和腺病毒受体 |
| CAR | Condenser Air Removal | 冷凝器空气去除 |
| CAR | Contract Administration Services | 合同管理服务 |
| CAR | Central Access Routing (open gate) | 中央访问路由（开门） |
| CAR | Carbine Assault Rifle (as in CAR-15) | 卡宾突击步枪（如CAR-15） |
| CAR | Customer Account Representative | 用户委托人代表 |
| CAR | Carriage | 马车 |
| CAR | Capital Acquisition Request | 资本收购请求 |
| CAR | Compilation and Reporting Issues | 汇编和报告问题 |
| CAR | Circumstance Action Result (interviewing strategy) | 环境行动结果（面试策略） |
| CAR | Cordillera Administrative Region (Philippines) | 科迪勒拉行政区（菲律宾） |
| CAR | Center for Applied Research | 应用研究中心 |
| CAR | Cordillera Autonomous Region (Philippines) | 科迪勒拉自治区（菲律宾） |
| CAR | Centro Addestramento Reclute (Italian: military training center) | Recrute中心（意大利语：军事训练中心） |
| CAR | Cellule d'Animation du Reseau (French) | 'Animation杜小细胞d(法国)的网格 |