GCI may refer to:

Education

Galt Collegiate Institute Galt Collegiate Institute and Vocational School (GCI) is one of sixteen secondary schools in the Waterloo Region District School Board, located in Cambridge, Ontario, Cambridge, Waterloo, Ontario, Waterloo, and Kitchener, Ontario, Canada. Founded ...

, in Cambridge, Ontario, Canada *

Glebe Collegiate Institute Glebe Collegiate Institute (GCI) is a high school in the Glebe neighbourhood of Ottawa, Ontario, Canada. Administered by the Ottawa-Carleton District School Board (OCDSB), Glebe Collegiate Institute has approximately 1,700 students and is the di ...

, 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 Glen Canyon Institute is a non-profit organization founded in 1996 dedicated to the restoration of the Colorado River through Glen Canyon, which is currently covered by Lake Powell, a reservoir created by Glen Canyon Dam. Their headquarters are i ...

, 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 Geomagnetically induced currents (GICs) are electrical currents induced at the Earth's surface by rapid changes in the geomagnetic field caused by space weather events. GICs can affect the normal operation of long electrical conductor systems such ...

* Glial cytoplasmic inclusions, a type of abnormal protein deposit in the brain *

Google Code-in Google Code-in (GCI) was an international annual programming competition hosted by Google LLC that allowed pre-university students to complete tasks specified by various, partnering open source organizations. The contest was originally the Google ...

, an annual programming contest *

Ground-controlled interception Ground-controlled interception (GCI) is an air defence tactic whereby one or more radar stations or other observational stations are linked to a command communications centre which guides interceptor aircraft to an airborne target. This tactic wa ...

* Grating-coupled interferometry, a biophysical characterization method * Global Caller Identification, a parameter used in telecoms protocols

Transportation

Guernsey Airport Guernsey Airport is an international airport on the island of Guernsey and the largest airport in the Bailiwick of Guernsey. It is located in the Forest, a parish in Guernsey, southwest of St. Peter Port and features mostly flights to Great ...

, 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 The First Geneva Convention, officially the Convention for the Amelioration of the Condition of the Wounded in Armies in the Field (), held on 22 August 1864, is the first of four treaties of the Geneva Conventions. It defines "the basis on whic ...

Gannett Company Gannett Co., Inc. ( ) is an American mass media holding company headquartered in New York City. It is the largest U.S. newspaper publisher as measured by total daily circulation. It owns the national newspaper ''USA Today'', as well as severa ...

, an American newspaper publisher *

Getty Conservation Institute The Getty Conservation Institute (GCI), located in Los Angeles, California, is a program of the J. Paul Getty Trust. It is headquartered at the Getty Center but also has facilities at the Getty Villa, and commenced operation in 1985.J. Paul Gett ...

, an American art conservation organization * Glass Ceiling Index, an index for visualizing economic inequality *

Global Competitiveness Index The ''Global Competitiveness Report'' (GCR) was a yearly report published by the World Economic Forum. Between 2004 and 2020, the ''Global Competitiveness Report'' ranked countries based on the Global Competitiveness Index, developed by Xavier Sa ...

Grace Communion International Grace Communion International (GCI), formerly named the Radio Church of God (RCG) and the Worldwide Church of God (WCG), is a Christian denomination based in Charlotte, North Carolina. According to the organization's website, the denomination ...

, a Christian denomination * Grassroots Campaigns, Inc., an American political consulting organization *

Great Coasters International Great Coasters International, Inc. (GCI or GCII) is a Sunbury, Pennsylvania-based roller coaster manufacturer which has created several award-winning rides since its formation in 1994. Starting in 2006 with Thunderbird (PowerPark), Thunderbird at ...

, an American roller coaster builder * Great Commission International, an American religious organization {{disambiguation