GI or Gi may refer to:

Military

G.I. G.I. is an informal term that refers to "a soldier in the United States armed forces, especially the army". It is most deeply associated with World War II, but continues to see use. It was originally an initialism used in U.S. Army paperwork f ...

, a nickname for U.S. Army soldiers

Arts and entertainment

* ''GI'' (album), an album by the Germs * Gi (''Captain Planet'' character) * ''

Game Informer ''Game Informer'' (''GI'' is an American monthly Video game journalism, video game magazine featuring articles, news, strategy, and reviews of video games and video game console, game consoles. It debuted in August 1991, when the video game reta ...

'', a magazine * ''

Gert's Inferno Gert's Inferno is a five-issue comic book story arc written by Skottie Young and drawn by Brett Bean as the fifth volume of '' I Hate Fairyland''. Published by Image Comics, the story revolves around an adult Gert as she is hired by a billionaire ...

'', a comic book series * Global Icon (band), a South Korean group * ''

Genshin Impact ''Genshin Impact'' is a 2020 action role-playing game produced by MiHoYo, MiHoYo/HoYoverse. The game features an anime-style open world environment and an action-based Role-playing battle systems, battle system using Classical element, element ...

'', an action role-playing gacha game developed by miHoYo

Organisations

General Instrument General Instrument (GI) was an American electronics manufacturer based in Horsham, Pennsylvania, specializing in semiconductors and cable television equipment. They formed in New York City in 1923 as an electronics manufacturer. During the 1950s ...

, an electronics company *

Gesellschaft für Informatik The German Informatics Society (GI) () is a German professional society for computer science, with around 20,000 personal and 250 corporate members. It is the biggest organized representation of its kind in the German-speaking world. History The ...

, a German computer society *

Goethe-Institut The Goethe-Institut (; GI, ''Goethe Institute'') is a Nonprofit organization, nonprofit German culture, cultural organization operational worldwide with more than 150 cultural centres, promoting the study of the German language abroad and en ...

, a German cultural association * Guaranteed Irish, a business membership network * Gymnastics Ireland, a governing body; see Sport in Ireland § Gymnastics

Science and technology

* GI, a complexity class in the

graph isomorphism problem The graph isomorphism problem is the computational problem of determining whether two finite graphs are isomorphic. The problem is not known to be solvable in polynomial time nor to be NP-complete, and therefore may be in the computational c ...

Galvanized iron Galvanization ( also spelled galvanisation) is the process of applying a protective zinc coating to steel or iron, to prevent rusting. The most common method is hot-dip galvanizing, in which the parts are coated by submerging them in a bath of ...

Biology and medicine

* G_i alpha subunit, a protein *

Gastrointestinal tract The gastrointestinal tract (GI tract, digestive tract, alimentary canal) is the tract or passageway of the Digestion, digestive system that leads from the mouth to the anus. The tract is the largest of the body's systems, after the cardiovascula ...

(GI tract) *

Gigantocellular reticular nucleus The gigantocellular reticular nucleus (also magnocellular reticular nucleus) is the (efferent/motor) medial zone of the reticular formation of the caudal pons and rostral medulla oblongata. It consists of a substantial number of giant neurons, but ...

, a subregion of the medullary reticular formation *

Glycemic index The glycemic (glycaemic) index (GI; ) is a number from 0 to 100 assigned to a food, with pure glucose arbitrarily given the value of 100, which represents the relative rise in the blood glucose level two hours after consuming that food. The GI of ...

, measuring a food's effect on blood glucose

Computing

* .gi, the country code top-level domain for Gibraltar *

Gi (prefix symbol) A binary prefix is a unit prefix that indicates a multiple of a unit of measurement by an integer power of two. The most commonly used binary prefixes are kibi (symbol Ki, meaning ), mebi (), and gibi (). They are most often used in informat ...

(gibi), a binary prefix *

Global illumination Global illumination (GI), or indirect illumination, is a group of algorithms used in 3D computer graphics that are meant to add more realistic lighting Lighting or illumination is the deliberate use of light to achieve practical or aest ...

, a group of 3D graphics algorithms

Transport

Guduvancheri railway station Guduvancheri railway station (station code: GI) is an NSG–3 category Indian railway station in Chennai railway division of the Southern Railway zone. It is one of the railway stations of the Chennai Beach–Chengalpattu section of the Chen ...

(Indian Railways station code), a railway station in Tamil Nadu, India *

Itek Air Itek Air, Ltd () was an airline based in Bishkek ( Manas International Airport) in Kyrgyzstan. Destinations As of October 2008, Itek Air operated scheduled passenger flights to the following destinations: ;People's Republic of China *Ürümqi ...

(IATA airline designator), a former airline based in Kyrgyzstan

Other uses

* GI, the ISO 3166-1 country code for

Gibraltar Gibraltar ( , ) is a British Overseas Territories, British Overseas Territory and British overseas cities, city located at the southern tip of the Iberian Peninsula, on the Bay of Gibraltar, near the exit of the Mediterranean Sea into the A ...

G.I. Generation G.I. is an informal term that refers to "a soldier in the United States armed forces, especially the army". It is most deeply associated with World War II, but continues to see use. It was originally an initialism used in U.S. Army paperwork ...

, a demographic cohort *

Graphics Interface The Graphics Interface (GI) conference is the oldest continuously scheduled conference devoted to computer graphics, and human–computer interaction Human–computer interaction (HCI) is the process through which people operate and engage with c ...

, a conference on computer graphics and human–computer interaction *

Geographical indication A geographical indication (GI) is a name or sign used on products which corresponds to a specific geographical location or origin (e.g., a town or region). The use of a geographical indication, as an indication of the product's source, is inten ...

, on products which corresponds to a geographical location or origin *

Gi (kana) き, in hiragana, キ in katakana, is one of the Japanese kana, which each represent one Mora (linguistics), mora. Both represent and are derived from a simplification of the kanji. The hiragana character き, like Sa (kana), さ, is drawn wi ...

, a syllabic character in Japanese script *

Gi (cuneiform) The cuneiform gi sign is a common multi-use sign of the ''Epic of Gilgamesh'', the 1350 BC Amarna letters, and other cuneiform texts. It also has a sumerogrammic usage for GI in the ''Epic of Gilgamesh''. The structure of the cuneiform si ...

, a sign in cuneiform writing *

Greg Inglis Gregory Paul Inglis (born 15 January 1987), also known by the nickname of "G.I.", is a retired Indigenous Australian professional rugby league footballer, who regularly played as a centre, fullback, five-eighth and wing. From 2011 to 2019, Ing ...

(born 1987), Australian rugby league footballer *

Keikogi (, 'practice', , 'dress' or 'clothes'), also known as or , is a traditional uniform worn for training in Japanese martial arts and their derivatives. Emerging in the late 19th century, the was developed by judo founder Kanō Jigorō. Origin J ...

, a Japanese martial arts uniform known in English simply as a ''gi''