ICF may refer to:

Science and technology[link]

• Immunodeficiency, centromere instability and facial anomalies syndrome
• Inertial confinement fusion, a means of achieving nuclear fusion
• Insulating concrete form, a construction technique
• Integrated Coupling Facility, a Coupling Facility on IBM mainframe computers
• International Classification of Functioning, Disability and Health, a classification of health and functioning
• Internet Connection Firewall, the firewall in Windows XP, now called Windows Firewall
• Intracellular fluid, body fluid contained in cells (as opposed to extracellular fluid)

Businesses and non-profit organizations[link]

• ICF International, an American consulting firm
• International Cablemakers Federation
• International Cremation Federation
• International Coach Federation
• Integral Coach Factory, an Indian manufacturer of rail coaches
• Intelligent Community Forum, a nonprofit research organization for Internet economic development
• Inter City Firm, a "hooligan firm" associated with West Ham United F.C.
• International Canoe Federation
• International Carrom Federation, the governing body for the sport of carrom
• International Christian Fellowship, a church that started in Zurich, Switzerland
• International Christian Fellowship, Sapporo, a church in Sapporo
• International Coach Federation, an organization for training and certifying professional coaches
• International Crane Foundation, for the study and preservation of cranes (birds)
• International Curling Federation, a former name for the World Curling Federation
• Irish Cycling Federation
• Island Corridor Foundation, a Canadian non-profit railway company

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