| CIR | Custormer Issue Resolution | 客户问题解决方案 |
| CIR | Commission on Industrial Relation | 劳资关系委员会[英] |
| CIR | Committed Information Rate | 承諾訊息速率 |
| CIR | Cosmetic Ingredient Review | 化妆品成分评估（美国） |
| CIR | Carrier to Interference Ratio | 载波干扰比（载干比〕 |
| CIR | Calling-line-Identity-Request | 主叫线路识别请求 |
| CIR | center-insight-right | 右中后卫 |
| CIR | Canada-India Reactor | 加印反应堆[印] |
| CIR | Cooled Infrared Radiometer | 冷却红外辐射计 |
| CIR | Critical Information Requirements | 关键信息要求 |
| CIR | Capital Investment Request | 资本投资请求 |
| CIR | Combustion Integrated Rack | 燃烧集成机架 |
| CIR | Change Incorporation Record (NASA) | 变更合并记录（NASA） |
| CIR | Central Intelligence Report | 中央情报报告 |
| CIR | Communication Industry Researchers, Inc. | 通信行业研究公司。 |
| CIR | Christians in Recovery, Inc. (online support group) | Christians in Recovery，Inc.（在线支持小组） |
| CIR | Consiglio Italiano Per I Rifugiati (Italian Refugee Council) | 意大利难民委员会 |
| CIR | Cargo Integration Review | 货物集成审查 |
| CIR | Committed Information Rate (data communications) | 承诺信息率（数据通信） |
| CIR | Centre InstantanÉ de Rotation | Centre InstantanÉ de Rotation |
| CIR | Consumer IR (remote control via infrared) | 消费者红外（通过红外遥控） |
| CIR | Continuous Improvement Review | 持续改进审查 |
| CIR | Change Incorporation Record | 变更注册记录 |
| CIR | Contingency Items Report | 应急项目报告 |
| CIR | Cylindrical Internal Reflection | 圆柱形内反射 |
| CIR | Cost Information Report | 成本信息报告 |
| CIR | Configuration Inspection Report | 配置检查报告 |
| CIR | Circor International, Inc. | Circor国际公司。 |
| CIR | Contractor Information Report | 承包商信息报告 |
| CIR | Call Initiate Request | 呼叫启动请求 |
| CIR | Collection Intelligence Requirement | 收集情报要求 |
| CIR | Critical Information Requirement | 重要信息要求 |
| CIR | Clone Information Received | 收到的克隆信息 |
| CIR | Chair Indicate Release/Refuse | 显示版本/拒绝的椅子 |
| CIR | Center For Incubation And Research | 孵化和研究中心 |
| CIR | cumulative incidence rate | 累积发病率 |
| CIR | Cephalo-Iliac Right | Cephalo Iliac右 |
| CIR | Center for Immigration Research | 移民研究中心 |
| CIR | Continuous Infrared | 连续红外线光 |
| CIR | Computer Integrated Repair | 计算机集成维修 |
| CIR | Current Instruction Register | 当前指令寄存器 |
| CIR | Certificado de Incentivo Forestal (Spanish) | 森林激励证书（西班牙语） |
| CIR | Controlled Impact Reentry (package) | 受控撞击再入（包） |
| CIR | Coherent Imaging Radar | 相干成像雷达 |
| CIR | City of Rochelle Illinois | 伊利诺伊州罗谢尔市 |
| CIR | Complex Impulse Response | 复杂脉冲响应 |
| CIR | Cold-In-Place Recycled | 就地冷再生 |
| CIR | Centro De InstrucciÓn De Reclutas | Centro De InstrucciÓn De Reclutas |
| CIR | circulatory | 循环的 |
| CIR | circulation | 循环 |
| CIR | Coordinator Of International Relations | 国际关系协调员 |
| CIR | Coordinated Implementation Required | 需要协调实施 |
| CIR | Citizens Initiated Referendum | 公民发起全民投票 |
| CIR | Call Inquiry Response | 呼叫查询响应 |
| CIR | Computer Investment Research | 计算机投资研究 |
| CIR | Carrier-to-Interference Ratio | 载波干扰比 |
| CIR | Committee of Interns and Residents | 实习生和住院医师委员会 |
| CIR | Centre for Innovation and Research | 创新与研究中心 |
| CIR | Center for International Rehabilitation | 国际康复中心 |
| CIR | Center for Insurance Research | 保险研究中心 |
| CIR | Center for Impact Research | 影响研究中心 |
| CIR | Channel Impulse Response | 信道脉冲响应 |
| CIR | Carbon Isotope Ratio | 碳同位素比率 |
| CIR | Certified Internet Recruiter (Advanced Internet Recruitment Strategies professional certification) | 认证互联网招聘人员（高级互联网招聘策略专业认证） |
| CIR | Center for Individual Rights | 个人权利中心 |
| CIR | Client Infrastructure Representative | 客户基础设施代表 |
| CIR | Chronic Intermittent Rhabdomyolysis | 慢性间歇性横纹肌溶解 |
| CIR | Centralized Inventory Report | 集中库存报告 |
| CIR | Cost Income Ratio | 成本收益比 |
| CIR | Coordinator For International Relations | 国际关系协调员 |
| CIR | Character Information Repository (Alleria, a role playing game) | 角色信息库（Alleria，角色扮演游戏） |
| CIR | Capital Investments Review | 资本投资审查 |
| CIR | Command Incident Report | 命令事件报告 |
| CIR | Cellule Inter-Agence de RÉinsertion (French) | Cellule Inter-Agence de RÉinsertion (French) |
| CIR | Colegio Interamericano de Radiologia (Inter-American College of Radiology) | 美洲放射学学院 |
| CIR | Color Infrared | 彩色红外 |
| CIR | Continuing Intelligence Requirement | 不间断情报需求 |
| CIR | Critical Implementation Review | 关键实施审查 |
| CIR | Cerebral Impulse Relay | 脑脉冲继电器 |
| CIR | Collaborative Information Retrieval | 协同信息检索 |
| CIR | Center for Investigative Reporting | 调查报导中心 |
| CIR | Central de InformaciÓn de Riesgos | Central de InformaciÓn de Riesgos |
| CIR | Conformity Inspection Record | 符合性检查记录 |
| CIR | Comprehensive Inpatient Rehabilitation | 综合住院康复 |
| CIR | Capital Improvement Report | 资本改善报告 |
| CIR | Configuration In Run | 运行中的配置 |
| CIR | Context-based Information Retrieval | 基于上下文的信息检索 |
| CIR | Circular | 圆形的 |
| CIR | Committed Information Rate (maximum average data rate that a network undertakes under normal circumstances) | 承诺信息速率（正常情况下网络承担的最大平均数据速率） |
| CIR | Commissioner Of Internal Revenue | 国内税收专员 |
| CIR | California Initiative Review | 加州倡议审查 |
| CIR | Communications Initiation Request | 通信启动请求 |
| CIR | COMSEC INFOSEC Representative | 通信安全信息安全代表 |
| CIR | Critical Information Request | 关键信息请求 |