CRN, or crn, may refer to:

Business CRN International, an American radio marketing company CRN S.p.A, a luxury yacht brand owned by the Ferretti Group Cornell Companies, a defunct American private prison company Congress Rental Network, an audiovisual technology trade association Council for Responsible Nutrition, an American dietary supplement trade association

Media CRN (magazine), an American technology trade magazine CRN Digital Talk Radio Networks, an American radio network Calvary Radio Network, a radio station network in the United States Community Radio Network (Australia), a radio program distributor Community Radio Network (New Zealand), a radio network

Politics National Reconciliation Committee (Comité de réconciliation nationale), a Malagasy political coalition founded by Albert Zafy National Reconciliation Council (Niger) (Conseil de réconciliation nationale), a governing body during the Fourth Republic of Niger National Revolutionary Committee (Comité Revolucionario Nacional), a participant in the Jaca uprising in Spain

Science Chemical reaction network, in mathematical chemistry Chromium nitride, a chemical compound Common Random Numbers, a statistical procedure Concentration ratio, a measure of market concentration in economics Cross-polytope of n-dimensions, in geometry US Climate Reference Network, a network of climate stations in the United States Neurosciences Research Center (Centre de recherche en neurosciences), a research organization at Université Laval, Québec, Canada The IMA symbol for corundum Carrington Rotation Number in Solar astronomy

Technology CRN 91 Naval Gun, an Indian naval autocannon AN/CRN, a series of United States military radio transmitters Cognos ReportNet, business intelligence software

Transportation Community Rail Network, a British rail association Country Regional Network, a rail network in New South Wales, Australia CRN, the Amtrak code for Creston (Amtrak station), Iowa, US CRN, the ICAO code for Aero Caribbean, merged into Cubana in 2015 CRN, the ICAO code for Carson Air Ltd, a Canadian air ambulance operator CRN, the National Rail code for Crowthorne railway station, Berkshire, UK CRN, the reporting mark for the Carolina and Northwestern Railway, US

Other uses Canadian Registration Number, in Canadian boiler safety regulation Certified Radiologic Nurse, a nursing certification Chinese Rainbow Network, an LGBT-related organization in China Conflict Risk Network, a program of the defunct Genocide Intervention Network Cora language, an indigenous language of Mexico

See also