ICP may refer to:

Arts and entertainment Instant Composers Pool - Dutch free jazz musical cooperative Insane Clown Posse - American hip hop duo International Center of Photography - photography museum and school on the Lower East Side of Manhattan, New York City, USA.

Businesses and organisations Businesses ICP srl, Italian aerospace and automotive manufacturer International Comfort Products, an American air conditioning and heating company Imperial College Press, a British publishing house

Education Catholic University of Paris (Institut Catholique de Paris), France Clodomiro Picado Research Institute (Instituto Clodomiro Picado), a research center in Costa Rica International College Program, a Disney International Program

Politics Immigration Control Platform, a political group in Ireland Indochinese Communist Party, 1930–1945, a predecessor of the Communist Party of Vietnam International Communist Party, the name of a number of left communist international political parties Iraqi Communist Party

Other organisations Institute for Conflict Transformation and Peacebuilding, a Swiss non-governmental organization Instituto de Cultura Puertorriqueña ('Institute of Puerto Rican Culture') International Center of Photography, a museum in New York City, US International Comparison Program, a partnership of statistical administrations guided by the World Bank

Science and technology ICP license (Internet Content Provider license), a permit to permit China-based websites to operate in China Inductively coupled plasma, a type of plasma source Initial Connection Protocol, of the ARPANET Network Control Program Integrated circuit piezoelectric sensor, a piezoelectric sensor International Cataloguing Principles, bibliographical cataloging standards for libraries Internet Cache Protocol, for coordinating web caches Intracranial pressure, inside the skull Intrahepatic cholestasis of pregnancy Intrinsically conducting polymer, organic polymers that conduct electricity Iterative closest point, a point cloud registration algorithm

Other uses Indonesian Crude Price, a price index for crude oil from Indonesia.