| Acronym | Definition |
|---|
| GCI➣Ground Circuit Interrupter |
| GCI➣Getty Conservation Institute |
| GCI➣Green Cross International (non-profit international environmental organization) |
| GCI➣Gminne Centrum Informacji (Polish: Local Information Center) |
| GCI➣Ground Controlled Interception (air defense tactic) |
| GCI➣Global Class Identifier |
| GCI➣Global Code Identifier |
| GCI➣Ground Control Intercept (US DoD) |
| GCI➣Global Commerce Initiative |
| GCI➣Green Campus Initiative (various schools) |
| GCI➣Growth Competitiveness Index |
| GCI➣Great Cities Institute |
| GCI➣Global Commons Institute (UK) |
| GCI➣Glial Cytoplasmic Inclusion (neurology) |
| GCI➣Générale Continentale Investissements (French: Continental General Investments) |
| GCI➣Guitar Center, Inc. (Delaware) |
| GCI➣Great Coasters International (Sunbury, PA) |
| GCI➣Glen Canyon Institute (Salt Lake City, UT) |
| GCI➣Golf Course Irrigation |
| GCI➣Global Consultants Inc |
| GCI➣Garbage Collection Interval |
| GCI➣Gwich'in Council International (Alaska and Canada) |
| GCI➣Group Critical Illness (insurance) |
| GCI➣Gestion Credit Interentreprises (French: Intercompany Credit Management) |
| GCI➣Groupe de Cardiologie Interventionnelle (French: Group of Interventional Cardiology) |
| GCI➣Génie Civil Industriel (French: Industrial Engineering) |
| GCI➣Group Crisis Intervention (various organizations) |
| GCI➣Graduate Careers Ireland |
| GCI➣Gray Card Index |
| GCI➣Groupement des Croiseurs d'Iroise (French sailing club) |
| GCI➣Gymnastiska Centralinstitutet (Sweden) |
| GCI➣Green Communities Initiative (various locations) |
| GCI➣Global Change Institute |
| GCI➣General Components, Inc. (various locations) |
| GCI➣Generalized Conversational Implicature |
| GCI➣Grace Churches International |
| GCI➣Gunei Chemical Industry (Japan) |
| GCI➣Grupo Cristiano Interliceano (Spanish Christian group) |
| GCI➣Groupe Central Immobilier (French: Central Real Estate Group) |
| GCI➣Grace Communion International (formerly Worldwide Church of God) |
| GCI➣Georgia Correctional Industries |
| GCI➣Global Communication Infrastructure |
| GCI➣Generix Collaborative Infrastructure (France) |
| GCI➣Guernsey, Channel Islands, United Kingdom - Guernsey (Airport Code) |
| GCI➣General Conditions of Insurance (various organizations) |
| GCI➣Great Cranberry Island (Maine, USA) |
| GCI➣Gascogne Comminges Immobilier (French: Comminges Gascony Estate) |
| GCI➣Globalization Challenge Initiative (est. 1998) |
| GCI➣Groupement des Coursiers Indépendants (French: Independent Group of Couriers) |
| GCI➣Galt Collegiate Institute (Cambridge, Ontario) |
| GCI➣Government Centre for Informatics (est. 1993; Slovenia) |
| GCI➣Grey Communications International |
| GCI➣General Communication Incorporated |
| GCI➣Guild of Calamitous Intent (fiction, Venture Bros.) |
| GCI➣Genetics Citation Index |
| GCI➣Guides to Canadian Industry |
| GCI➣Gross Cash Invested |
| GCI➣Glenlawn Collegiate Institute |
| GCI➣Geocentric Celestial Inertial Coordinate System |
| GCI➣Generic Channel Interface |
| GCI➣General Consumer Interest |
| GCI➣Generic Communications Index |
| GCI➣Global Cyber Investment (Japan) |
| GCI➣Global Change Initiative |
| GCI➣Gaussian Co-Channel Interferer |
| GCI➣Gateway Customer Interface |
| GCI➣Grade Crossing Inventory |
| GCI➣Global Capital Investors LP |
| GCI➣Guerra Consulting Inc (Overland Park, KS) |