GCC commonly refers to:

• Gulf Cooperation Council, an organization of Arab states
• GNU Compiler Collection, a free and open-source cross-platform compiler

GCC may also refer to:

• Good Counsel College, Innisfail, Queensland, Australia
• Greenwich Community College, England
• Gazipur Cantonment College, Bangladesh
• Grace Christian College, Quezon City, Philippines
• Galahitiyawa Central College, Ganemulla, Sri Lanka

• Garden City Collegiate, a high school in Winnipeg, Manitoba
• Grenville Christian College, near Brockville, Ontario

• Genesee Community College, Batavia, New York
• Germanna Community College, Virginia
• Gila Community College, Arizona
• Girls Catholic Central High School, in Detroit, Michigan
• Glendale Community College (Arizona)
• Glendale Community College (California)
• Gloucester County College, former name of Rowan College at Gloucester County, New Jersey
• Gogebic Community College, Michigan
• Greenfield Community College (Massachusetts)
• Greensburg Central Catholic High School, Pennsylvania
• Grove City College, a private college in Pennsylvania
• Guam Community College, Guam

• Gauhati Cine Club, a film society in Assam
• Grand Challenges Canada, a Canadian non-profit organization
• Global China Connection, a student-run non-profit organization

• Gene Codes Corporation, a bioinformatics software company
• General Cinema Corporation, a former theater chain acquired by AMC Theatres
• General Computer Corporation, a computer printer manufacturer, formerly a video-game producer
• Ghirardelli Chocolate Company, a US chocolate company

• Garde côtière canadienne, the Canadian Coast Guard
• Gazipur City Corporation, one of the city corporations in Bangladesh
• General Chiropractic Council, regulatory body for chiropractic in the UK
• Georgia Cryptologic Center, a US National Security Agency facility in Augusta, Georgia
• Glasgow City Council, United Kingdom
• Global Climate Coalition, a defunct grouping of businesses opposing action on climate change
• Global Certification Commission, an independent body of the World Health Organization for the eradication of wild polio
• Grand Council of the Crees (GCC(EI)), Canada
• Graphic Communications Conference, an American trade union
• Great Council of Chiefs, a former constitutional body in Fiji
• Greater Chennai Corporation, civic body that governs the city of Chennai in India.

• Gateway Community Church, Baguio City, Philippines
• Georgia-Cumberland Conference of Seventh-day Adventists, or Georgia-Cumberland Conference, US
• Grace Community Church, California, US
• Granger Community Church, Indiana, US
• Great Commission Churches, Ohio, US

• Glenorchy Cricket Club, Tasmania, Australia
• Godalming Cricket Club, Surrey, England
• Golden Coast Conference, an American collegiate water polo conference
• Goodwood Cricket Club, Chichester, England
• Greater Cleveland Conference, Ohio, US
• Gulf Coast Conference, a defunct NCAA college athletic conference

• General communication channel, in computer networking
• Global carbon cycle, the biogeochemical cycle by which carbon is exchanged
• Guanylyl cyclase c, an enzyme
• Green-Cheeked Conure, a species of parakeet
• Gaussian correlation conjecture, a mathematical conjecture proved in 2014 by Thomas Royen
• GCC, a codon for the amino acid alanine

• Gibbon Conservation Center, in Santa Clarita, California, US
• Gillette–Campbell County Airport (IATA and FAA LID codes), Wyoming, US
• Greensboro Coliseum Complex, an entertainment and sports complex in Greensboro, North Carolina, US
• Knight Grand Cross of the Royal Order of Cambodia
• Grand Cross of the Military Order of Christ
• Green-cheeked conure, a variety of parakeet

• GCCS (disambiguation)