GI

GI, G.I. or Gi may refer to:

Military

• G.I., a nickname for U.S. Army soldiers

Sports

• Gymnastics Ireland, a governing body
• Greg Inglis (born 1987), Australian rugby league footballer
• Keikogi (Japanese: 稽古着, lit. 'practice clothes'), a Japanese martial arts uniform known in English simply as a gi

Arts and entertainment

• GI (album), an album by the Germs
• Gi (Captain Planet character)
• Game Informer, a magazine
• Gert's Inferno, a comic book series
• Global Icon (band), a South Korean group
• Genshin Impact, an action role-playing gacha game developed by miHoYo

Language, geography, and transportation

• Gi (kana), a syllabic character in Japanese script
• Gi (cuneiform), a sign in cuneiform writing
• Gi (digraph), one of several digraphs
• Goethe-Institut, a German cultural association
• Guaranteed Irish, a business membership network
• Geographical indication, on products which corresponds to a geographical location or origin
• Gibraltar (ISO 3166-1 code GI), a disputed British Overseas Territory in the Iberian Peninsula
• Guduvancheri railway station (Indian Railways code GI), in Chennai, Tamil Nadu, India
• Itek Air (IATA code GI), a 1999–2010 airline based in Kyrgyzstan

Science and technology

• Galvanized iron, a kind of metal

Biology and medicine

• G_i alpha subunit, a part of some proteins
• Gastrointestinal tract (GI tract), the main part of the digestive system
• Gigantocellular reticular nucleus (Gi), a subregion of the medullary reticular formation
• Glycemic index, a measure of a food's effect on blood glucose
• Gender incongruence

Computing

• GI, a complexity class in the graph isomorphism problem
• .gi, the ccTLD for Gibraltar
• Gi (prefix symbol) (gibi), a binary prefix
• Global illumination, a group of 3D graphics algorithms

Computing organizations

• General Instrument, an American electronics company that specializes in manufacturing semiconductors and cable television equipment
• German Informatics Society (Gesellschaft für Informatik), a German professional society for computer science
• Graphics Interface, a conference on computer graphics and human–computer interaction

See also

• G.I. Generation (or Greatest Generation), a demographic cohort
• G.I. Joe (disambiguation)
• G1 (disambiguation)
• GL (disambiguation)