may refer to:
- Innovation Relay Centres Network A European Union initiative to foster transnational technology transfer in Europe
- Internet Relay Chat , an online system of communication
- International Red Cross And Red Crescent Movement , the overarching organization of Red Cross/Crescent/Crystal societies
- --- International Red Cross , the former name of the International Red Cross and Red Crescent Movement
- Interhemispheric Resource Center , affiliated with the International Relations Center (see below)
- International Relations Center , a policy studies institute based in Silver City, New Mexico ; one of its projects is Right Web , described as a program of the Interhemispheric Resource Center
- Industrial Relations Commission , a workplace relations tribunal in Australia
- International Rescue Committee , an organization that assists refugees
- International Rescue Corps , a search and rescue organisation based in the United Kingdom
- Indian River County , a county in the U.S. state of Florida
- Internal Revenue Code , the federal tax code used in the United States
- International Reply Coupon , used to post a standard 20 gram letter to most countries
- International Rostrum Of Composers , an annual forum for the promotion of contemporary classical music.
- .
- Incrementally Related Carriers , a standard for video channel frequencies.
- Intercontinental Rally Challenge , rally championship aimed at young or amateur rally drivers under FIA sporting and technical regulations
- IRC (Sailing) , a system of handicapping sailboats and yachts for the purpose of racing.
- Immigration Removal Centre , the official name for immigration detention centre in the United Kingdom.
- International Residential Code
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