CIR

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CIR or Cir may refer to:

Locations

Center for Individual Rights, a US non-profit public interest law firm
Center for Investigative Reporting, a nonprofit journalism organization
Christian Initiative Romero, a German non-profit organization supporting industrial law and human rights in Central America
Cosmetic Ingredient Review, a consumer safety group

Commissioner of Internal Revenue, a US Treasury position
Committee on International Relations, renamed the United States House Committee on Foreign Affairs in 2007
Comprehensive Immigration Reform Act of 2006, a US Senate bill
Convention of Republican Institutions, a defunct French political party
Citizen initiated Referendum, a type of referendum initiated by the signature of a certain minimum number of registered voters
Cyber and Information Domain Service (Germany) (German: Cyber- und Informationsraum; CIR), the cyber branch of Germany's military

CIR (gene), a gene that encodes the protein corepressor interacting with RBPJ in humans
Carbon isotope ratio analysis, a subset of isotope ratio mass spectrometry
Central ischaemic response, a cause of fainting
Corotating interaction region, the interface between fast and slow regions of the solar wind
Cir, abbreviation for the constellation Circinus

Carrier-to-interference ratio, in radio transmission
Color infrared film, in photography
Combustion Integrated Rack, an International Space Station microgravity research tool
Committed information rate, or minimum guaranteed bitrate, in telecommunications
Consumer IR, a class of remote control and communication devices

Committee on International Relations (University of Chicago), a graduate program
CIR Group, an Italian holding company
Coordinator for International Relations, a position within the Japan Exchange and Teaching Program
Cost/income ratio, a financial ratio
The Cox–Ingersoll–Ross model for interest rate dynamics
Campionato Italiano Rally (Italian Rally Championship), in automobile racing
Arctic Circle Air, ICAO code