GCP may refer to:
Companies and organizations GCP Applied Technologies, an American chemical company GCP Infrastructure Investments, a British investment trust Global Centre for Pluralism, in Ottawa, Canada Global Charity Project, a student-run organization at Marymount University Global Carbon Project, an organisation that studies greenhouse gas emissions Globis Capital Partners, a Japanese venture capital firm Grand Central Partnership, a not-for-profit corporation that manages a business improvement area in New York City, US Greater Cambridge Partnership, a 'City Deal' in the UK since 2013
Political parties German Communist Party Ghana Congress Party, a political party of the Gold Coast Grand Commonwealth Party, active in the 2021 Bahamian general election
Military Commando Parachute Group (French: ), French special forces Group of Popular Combatants (Spanish: ), an Ecuadorean insurgence group
Science and technology Giantin, a protein Good clinical practice, an international quality standard for clinical trials
Computing Games Computers Play, a 1980s online gaming service Google Cloud Platform, a suite of computing services offered by Google Google Cloud Print, a Google service that prints documents Ground control point, in geographic information system image rectification
Other uses Global Consciousness Project, a parapsychology experiment attempting to detect possible interactions of "global consciousness" with physical systems Grand Central Parkway, a road in New York City, US Greater Chennai Police, law enforcement agency in Chennai, India