| Acronym | Definition |
|---|
| CIR➣Circle |
| CIR➣Circumference |
| CIR➣Committed Information Rate (data communications) |
| CIR➣Circuit |
| CIR➣Circular |
| CIR➣Circulate |
| CIR➣Committee on International Relations (various organizations) |
| CIR➣Cosmetic Ingredient Review |
| CIR➣Certificate in International Relations (various organizations) |
| CIR➣Comprehensive Immigration Reform |
| CIR➣Committed Information Rate (maximum average data rate that a network undertakes under normal circumstances) |
| CIR➣Channel Impulse Response |
| CIR➣Center for Interdisciplinary Research (various locations) |
| CIR➣Cambridge Investment Research (various locations) |
| CIR➣Color Infrared |
| CIR➣Committee on Information Resources (Triangle Research Libraries Network; North Carolina) |
| CIR➣Center for Investigative Reporting |
| CIR➣Cost Income Ratio |
| CIR➣Combustion Integrated Rack |
| CIR➣Commissioner of Inland Revenue (various locations) |
| CIR➣Central Intelligence Report |
| CIR➣Crédit d'Impôt Recherche (French: Research Tax Credit) |
| CIR➣Consumer IR (remote control via infrared) |
| CIR➣Cox, Ingersoll and Ross (economic model) |
| CIR➣Committee of Interns and Residents |
| CIR➣Certified Internet Recruiter (Advanced Internet Recruitment Strategies professional certification) |
| CIR➣Compagnie Industriali Riunite (Italian industrial group) |
| CIR➣Comprehensive Inpatient Rehabilitation |
| CIR➣Committed Information Rate |
| CIR➣Consumer Infra Red |
| CIR➣Carrier to Interference Ratio |
| CIR➣Comprehensive Information Report |
| CIR➣Color Infra Red |
| CIR➣Carbon Infra Red |
| CIR➣Current Instruction Register |
| CIR➣Connector for Infra Red |
| CIR➣Central Indian Ridge (geology) |
| CIR➣Center for Individual Rights |
| CIR➣Conselho Indígena de Roraima (Portuguese: Indigenous Council of Roraima; Roraima, Brazil) |
| CIR➣Centre for Immune Regulation (University of Oslo; Norway) |
| CIR➣Consiglio Italiano Per I Rifugiati (Italian Refugee Council) |
| CIR➣Continuous Infrared |
| CIR➣Critical Information Requirement |
| CIR➣Chicago Indoor Racing (Illinois) |
| CIR➣Continuous Improvement Review |
| CIR➣Coordinator for International Relations (Japan Exchange and Teaching Programme) |
| CIR➣Complex Impulse Response |
| CIR➣Carrier-to-Interference Ratio |
| CIR➣Center for International Rehabilitation |
| CIR➣Command Instrument Rating (flight training) |
| CIR➣Certificate in Institutional Research (various schools) |
| CIR➣Cold In-Place Recycling (pavement processing and treatment) |
| CIR➣Centre d'Information et de Recrutement (French: Information and Recruitment Center; law enforcement) |
| CIR➣Chinese Information Retrieval |
| CIR➣Community Information Referral (Arizona) |
| CIR➣Consortium for International Recruitment (European Council of International Schools) |
| CIR➣Cost Information Report |
| CIR➣Convention des Institutions Républicaines (French political party) |
| CIR➣Community Impact Report (various locations) |
| CIR➣Critical Infrastructure Resiliency (US FEMA) |
| CIR➣Common Intermediate Representation (computing) |
| CIR➣Carbon Isotope Ratio |
| CIR➣Collections Information Repository (US Department of the Treasury) |
| CIR➣Center for Impact Research |
| CIR➣Colegio Interamericano de Radiologia (Inter-American College of Radiology) |
| CIR➣Central de Información de Riesgos |
| CIR➣Center for Immigration Research |
| CIR➣Center for Insurance Research |
| CIR➣Collaborative Information Retrieval |
| CIR➣Context-based Information Retrieval |
| CIR➣Cloud Infrared Radiometer |
| CIR➣Client Infrastructure Representative |
| CIR➣Cargo Integration Review |
| CIR➣Compte Individuel Retraite (French: Individual Retirement Account) |
| CIR➣Close Indication Relay (electrical circuitry) |
| CIR➣Chemical Industry Roundtable |
| CIR➣Cross Index Range |
| CIR➣Centre Instantané de Rotation |
| CIR➣Communication Industry Researchers, Inc. |
| CIR➣Clinical Intelligence Rules |
| CIR➣Constructions Industrielles du Rhône (French industrial construction company) |
| CIR➣Cerebral Impulse Relay |
| CIR➣Cylindrical Internal Reflection |
| CIR➣Continuing Intelligence Requirement |
| CIR➣Compagnie Immobilière de Restauration (French real estate company) |
| CIR➣Christians in Recovery, Inc. (online support group) |
| CIR➣Capital Improvement Report |
| CIR➣California Initiative Review |
| CIR➣Coherent Imaging Radar |
| CIR➣Channel Islands Restoration (Santa Barbara, CA) |
| CIR➣Chair Indicate Release/Refuse |
| CIR➣Change Incorporation Record (NASA) |
| CIR➣Configuration Inspection Report |
| CIR➣Change Incorporation Record |
| CIR➣Centre Informatique Recherche (French computer research center) |
| CIR➣Cellule Inter-Agence de Réinsertion (French) |
| CIR➣Computer Integrated Repair |
| CIR➣Centre for Innovation and Research |
| CIR➣Conformity Inspection Record |
| CIR➣Certificado de Incentivo Forestal (Spanish) |
| CIR➣Code de l'Impôt sur les Revenus (French: Income Tax Code; Belgium) |
| CIR➣Capital Investment Request |
| CIR➣Controlled Impact Reentry (package) |
| CIR➣Critical Information Request |
| CIR➣Character Information Repository (Alleria, a role playing game) |
| CIR➣Critical Implementation Review |
| CIR➣Coordinated Implementation Required |
| CIR➣Chronic Intermittent Rhabdomyolysis |
| CIR➣Command Incident Report |
| CIR➣Calgary Independent Realty Ltd. (Calgary, Aberta, Canada) |
| CIR➣Call Initiate Request |
| CIR➣Candidate Interoperability Plan |
| CIR➣COMSEC INFOSEC Representative |
| CIR➣Centralized Inventory Report |
| CIR➣Collection Intelligence Requirement |
| CIR➣Call Inquiry Response |
| CIR➣Cephalo-Iliac Right |
| CIR➣Contingency Items Report |
| CIR➣Contractor Information Report |
| CIR➣Carrier-Induced Regeneration (bioengineering) |
| CIR➣Centre d'Intervention Rapide (French: Rapid Intervention Center; emergency medical transportation) |
| CIR➣Critical Inspection Report (US Coast Guard) |