Internet Relay Chat (IRC) is an internet protocol primarily for channel-oriented text communication.

IRC may also refer to:

Organisations

• Australian Industrial Relations Commission, a workplace relations tribunal in Australia
• Industrial Reorganisation Corporation, a now defunct entity of the British government
• Inland Regional Center, an organization providing services for people with developmental disabilities in southern California
• International Red Cross and Red Crescent Movement, a worldwide health protection movement
• Immigration, Refugees and Citizenship Canada, a department of the federal government of Canada
• Immigration Removal Centre, the official name for immigration detention centre in the United Kingdom
• Independence Republic of Sardinia, a social-democratic and non-violent separatist political party based in Sassari, Sardinia, Italy
• International Rescue Committee, an organization that assists refugees
• International Rescue Corps, a search and rescue organisation based in the United Kingdom
• IRC (organization), a think and do tank for water hygiene and sanitation services in The Hague, the Netherlands
• IRC Limited, a Hong Kong-based industrial commodities business
• IRC Tire, a brand of Inoue Rubber Co., Ltd.

Places

• Circle City Airport, an airport in Circle City, Alaska, United States
• Indian River County, Florida, a county in Florida, United States

Science, technology and internet

• Two-Micron Sky Survey catalogue entries have the form IRC followed by a five-digit number, standing for infrared catalogue
  • IRC -10414, a red supergiant star
  • IRC +10420, a yellow hypergiant star
• Incrementally related carriers, a standard for video channel frequencies
• Infrared reflective coating, on a type of incandescent light bulb
• IRC-Galleria, a social networking website in Finland commonly called "IRC"
• Intrinsic reaction coordinate in the analysis of the energy profile of a chemical reaction
• IRC (sailing), a system of handicapping sailboats and yachts for the purpose of racing

Other uses

• Immigration Removal Centre, a facility for holding individuals suspected of visa violations; see Immigration detention
• Internal Revenue Code, the federal tax code used in the United States
• International reply coupon, used to post a letter to most countries
• International Residential Code, a set of codes and standards; see International Building Code
• International Rostrum of Composers, an annual forum for the promotion of contemporary classical music
• Intercontinental Rally Challenge, a rally championship

See also

• Infrared reflective coating, on insulated glazing