GIS can refer to:

Places and organizations

• Garden International School, in Kuala Lumpur, Malaysia
• Gippsland Independent Schools, an association of schools in the Gippsland region of Victoria, Australia
• Gisborne Airport, Gisborne, New Zealand
• Goshen Intermediate School, in Goshen, New York
• Greenland ice sheet, a vast body of ice covering most of Greenland
• Gruppo di Intervento Speciale, a counter-terrorist unit of the Italian Carabinieri
• Groupe d'Intervention Spécial, a special operations unit of Algeria

Science and technology

• Gas insulated switchgear for electric power distribution
• Gastrointestinal tract (or system), the digestive tract in humans and other primates
• Generic Interface Specification, an authentication system used by iPass
• Geodesic interpolating splines in image registration
• Geographic information science, the academic theory behind the development, use, and application of geographic information systems
• Geographic information system, a system for creating, storing, analyzing and managing spatial data and associated attributes
• Google Image Search, the image finding capability of search engine Google

Other

• Green investment scheme, a credit acquisition mechanism under the Kyoto Protocol
• Guaranteed Income Supplement, a Canadian pension plan is a taxable monthly payment available to most older Canadians
• Ghost in the Shell, a Japanese cyberpunk manga and anime film series

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