GPI

GPI may refer to:

Economics

 * Gender Parity Index
 * Genuine progress indicator
 * Global Payments Innovation, a faster international payment service by SWIFT

Education

 * George Padmore Institute, a British library and archives
 * Greenfield Park Primary International School, in Quebec, Canada

Government and politics

 * Global Peace Index
 * Global Partnership Initiative of the United States State Department

Materiel

 * United States national missile defense

Medicine

 * Generic Product Identifier, a drug classification system
 * General paresis of the insane
 * Glucose-6-phosphate isomerase, an enzyme
 * Glycosylphosphatidylinositol, a glycolipid
 * Internal globus pallidus

Science and technology

 * Gemini Planet Imager, a telescope instrument
 * General Purpose Input, an uncommitted digital signal pin on an integrated circuit or electronic circuit board used as an input and controllable by the user at runtime.
 * Gibson Plumage Index, an albatross identification system
 * Global Address Space Programming Interface, a Linux API
 * Grains per inch
 * Granite Peak Installation, an American World-War-II-era biological weapons testing facility

Transport

 * Glacier Park International Airport, serving Flathead County, Montana, United States
 * Guapi Airport, in Colombia

Other uses

 * Glass Packaging Institute, an American trade association
 * Global Poker Index
 * Global Press Institute, an American journalism organization
 * Godfrey Phillips India, an Indian tobacco company
 * Gurley Precision Instruments, an American manufacturer