ICC

• International Commerce Centre, a skyscraper in Hong Kong
• International Commercial Center, a skyscraper in Ulaanbaatar, Mongolia
• International Convention Centre (disambiguation), any of several convention centers
• Internationales Congress Centrum Berlin, Germany
• Edward B. Bunn S.J. Intercultural Center, a building on the campus of Georgetown University, US
• International Convention Centre, Birmingham, a conference centre in Birmingham, England

• Interstellar Confederation of Corporations, in the MMORPG Anarchy Online
• International Cricket Captain (series), a video game series about cricket management
• Internet Chess Club, a website for playing chess
• Icecrown Citadel, in the MMORPG World of Warcraft: Wrath of the Lich King

• International Criminal Court, an intergovernmental organization and international tribunal headquartered in The Hague, the Netherlands
• Illinois Commerce Commission, a quasi-judicial tribunal which regulates public utility services in the U.S. state of Illinois

Government

• Interstate Commerce Commission, a now-defunct U.S. government regulatory body
• International Control Commission, which oversaw the 1954 Geneva Accords ending the First Indochina War
• International Computing Centre, based in Geneva, Switzerland, established by the UN in 1971
• International Computation Centre, in Rome, Italy, created by UNESCO in 1951, now the Intergovernmental Bureau for Informatics
• International Certificate of Competence for Operators of Pleasure Craft, a European boating license
• Isthmian Canal Commission, a body set up to administer the Panama Canal Zone

Politics

• International Communist Current, a communist organization
• Inuit Circumpolar Council, a non-governmental organization representing several peoples in the far north
• International Coordinating Committee of National Human Rights Institutions
• Israel on Campus Coalition

Religion

• International Christian Concern, a human rights organization
• International Christian Church, a group of Stone-Campbell Restoration churches led by Kip McKean and split off from the ICOC
• International Churches of Christ, a group of Stone-Campbell Restoration Movement Christian churches
• International Critical Commentary, an academic level biblical commentary series
• Irish Council of Churches, an ecumenical Christian body

Sports

• International Cricket Council, the governing body of cricket
• International Champions Cup, friendly association football tournament of mostly European clubs
• International Co-ordination Committee of World Sports Organizations for the Disabled, 1982–1989 predecessor of the International Paralympic Committee
• Illinois College Conference, a defunct American collegiate athletic conference
• Indiana Collegiate Conference, a defunct American collegiate athletic conference

Business

• Industrial Credit Company, (later Industrial Credit Corporation) purchased by the Halifax
• Information Control Company, an information technology consulting firm headquartered in Columbus, Ohio
• Innovation Collaboration Centre, a startup incubator in Adelaide, South Australia
• Innovative Communications Corporation, a telecommunications company in the United States Virgin Islands
• International Chamber of Commerce, supporting global trade and globalisation
• International Code Council, US-based building codes organisation
• International Controls Corporation, an American holding company founded by Robert Vesco
• International Culinary Center, a cooking school with several locations

Other organizations

• Imperial Camel Corps, an historic British Commonwealth military unit
• Incarnation Children's Center, a New York orphanage, specializing in care of children with HIV/AIDS
• Indian Cinematograph Committee, an Indian government committee overseeing censorship and cinema
• Inter-Cooperative Council at the University of Michigan, a student housing cooperative in Ann Arbor, Michigan
• International Association for Cereal Science and Technology, formerly International Association for Cereal Chemistry
• International Camp on Communication and Computers, European organisation for blind and partially sighted students
• International Centre for Choreography, based at the Australian Dance Theatre in Adelaide, South Australia
• International Code Council, a US-based organization that publishes the International Building Code
• International Color Consortium, a standards body for computer color management
• Institute for Computational Cosmology, an academic research institute at Durham University
• NTT InterCommunication Center, a media art gallery in Tokyo, Japan

• I_CC, the transistor collector current in an NPN bipolar junction transistor
• ICC profile, for characterising a color space or device
• Immunocytochemistry, interaction of chemicals with immune responses of cells
• Infinite conjugacy class property, or ICC group in mathematics
• Information Coding Classification, a system for classification of literature or other information by knowledge domains
• Intel C++ Compiler, a group of C and C++ compilers from Intel
• Intercellular communication, in cell biology
• International calling code, a prefix to call to a phone number from abroad
• International consensus criteria, proposed diagnostic criteria for chronic fatigue syndrome (myalgic encephalomyelitis)
• Interstitial cell of Cajal, a type of interstitial cell found in the gastrointestinal tract
• Intraclass correlation or intraclass correlation coefficient
• Item characteristic curve, curves used in item response theory
• Smart card, or integrated circuit card or integrated chip card
  • Integrated circuit card identifier (ICCID), the identifier of SIM card

United Kingdom

• Icknield Community College, a comprehensive school in Watlington, Oxfordshire
• Ifield Community College, a school in Crawley, West Sussex
• International Christian College, Glasgow, Scotland
• Ivybridge Community College, a secondary school in Ivybridge, Devon

United States

• Illinois Central College, main campus in East Peoria; two campuses in Peoria, one in Pekin, Illinois
• Independence Community College, a community college in Independence, Kansas
• Isothermal Community College, a community college in Spindale, North Carolina
• Itasca Community College, a community college in Grand Rapids, Minnesota
• Itawamba Community College, campuses located in Fulton and Tupelo, Mississippi
• Izard County Consolidated High School, a high school and school district in Brockwell, Arkansas
• Dr. William M. Scholl College of Podiatric Medicine, formerly known as the Illinois College of Chiropody

• International Cartographic Conference, an academic conference of the International Cartographic Association
• International Conference on Communications, an academic conference for engineers
• International Conference on Creationism, a conference in support of young earth creationism
• International Coastal Cleanup, a worldwide day of trash cleanup activities founded by Ocean Conservancy staff member Linda Maraniss in 1986

• Commerce Clause, also known as the Interstate Commerce Clause and Indian Commerce Clause, an enumerated power of the US Constitution
• Integration competency center, a shared service function within an organization for performing methodical data integration, system integration or enterprise application integration
• Maryland Route 200 or Intercounty Connector, a highway between the two Maryland suburban counties bordering Washington, DC, US
• International Certificate of Competence, a boating certificate
• Independent component city, a legal class of cities in the Philippines