GCI

GCI may refer to:

Education

• Galt Collegiate Institute, in Cambridge, Ontario, Canada
• Glebe Collegiate Institute, in Ottawa, Ontario, Canada
• Global Change Institute, at the University of the Witwatersrand, Johannesburg, South Africa
• Global Cinematography Institute, in Los Angeles, California, United States
• Government College Ikorodu, in Lagos State, Nigeria

Environmentalism

• Glen Canyon Institute, in Utah, United States
• Green Cross International, an International environmental organization
• Green Campus Initiative (UCT), a student organization at the University of Cape Town

Science, medicine and technology

• GCI (company), an American telecommunications company
• Gaussian correlation inequality
• Generalized conversational implicature
• Geomagnetically induced current
• Glial cytoplasmic inclusions, a type of abnormal protein deposit in the brain
• Google Code-in, an annual programming contest
• Ground-controlled interception
• Grating-coupled interferometry, a biophysical characterization method
• Global Caller Identification, a parameter used in telecoms protocols

Transportation

• Guernsey Airport, in the Channel Islands
• GCI coach, the staple of Belgian passenger rail traffic in the steam era

Other uses

• International Conference on the Situation in Venezuela (Spanish: Grupo de Contacto Internacional)
• First Geneva Convention
• Gannett Company, an American newspaper publisher
• Getty Conservation Institute, an American art conservation organization
• Glass Ceiling Index, an index for visualizing economic inequality
• Global Competitiveness Index
• Grace Communion International, a Christian denomination
• Grassroots Campaigns, Inc., an American political consulting organization
• Great Coasters International, an American roller coaster builder
• Great Commission International, an American religious organization