G3, G03, G.III, G.3 or G-3 may refer to:
Politics G3 Free Trade Agreement between Colombia, Mexico and Venezuela EU three of France, Germany, and Italy
Military AEG G.III, a German World War I heavy bomber Albatros G.III, a 1916 German bomber aircraft Caudron G.3, a 1913 French single-engined biplane Friedrichshafen G.III, a 1915 German medium bomber G-3 U. S. Army Operations (military staff) G3 battlecruiser, a post First World War design for the Royal Navy that was curtailed by the Washington Naval Treaty G3 (NATO), the Assistant Chief Of Staff or senior staff officer on Operations and Plans at the division level and higher Gotha G.III, a 1916 German heavy bomber Heckler & Koch G3, a battle rifle produced by Heckler & Koch Soko G-3, improved variant of Soko G-2 airplane , an early U.S. Navy submarine Group of Three, a group dispatched to Lebanon in 1958, shortly before the 1958 Lebanon crisis
Electronics Canon PowerShot G3, a digital camera made by Canon G3 power state, in computer ACPI power states G3, a fax encoding format G3, a PBX from the Avaya Definity range Gibson G3, a 1975 bass guitar iAudio G3, an mp3 player from the Cowon iAudio range Panasonic Lumix DMC-G3, a digital interchangeable lens camera made by Panasonic PowerPC G3, a microprocessor branding used by Apple Computer LG G3, an Android smartphone developed by LG Electronics G3 gaming laptops series from Dell iMac G3, the first product in Apple's iMac line
Media g3 (British magazine), a UK magazine aimed at lesbian and bisexual women G3 (tour), a live music show and guitar tour organized by Joe Satriani and Steve Vai G3: Genes, Genomes, Genetics, a scientific journal in the discipline of genetics, published by the Genetics Society of America GIII, the alternative title for the third and final film in the Gamera heisei trilogy.
Science and medicine ATC code G03 Sex hormones and modulators of the genital system, subgroup of the Anatomical Therapeutic Chemical Classification System G3 star, a subclass of G-class stars in stellar classification Group 3 element of the periodic table G3 medium in embryo culture G-3 (drug) (Ganesha-3), a psychedelic drug
Transportation Galactic 03 (G03), a suborbital tourist spaceflight on 8 September 2023
Air transportation City Connexion Airlines, a former Burundian airline, IATA designation G3 Gol Transportes Aéreos, a Brazilian economy airline, IATA designation G3 Gulfstream III, an American business jet, sometimes abbreviated GIII
Automobiles BYD G3, a 2009–2014 Chinese compact sedan Enranger G3, a 2014–2020Chinese subcompact SUV Polytron G3, a 2025-present Indonesian battery electric compact crossover SUV, rebadged Skyworth EV6 Pontiac G3, a 2008–2010 American subcompact car XPeng G3, a 2018–2023 Chinese compact electric SUV
Rail transportation Gaiemmae Station, station G-03 of the Tokyo Metro Ginza Line PRR G3, an American PRR 4-6-0 locomotive WLWR Class G3, a Waterford, Limerick and Western Railway Irish steam locomotive LNER Class G3, a class of British steam locomotives
Roads and routes G3 Beijing–Taipei Expressway, incomplete expressway intended to link mainland China and Taiwan
Watercraft G3 boats, from Yamaha Motor Corporation
Other Kamen Rider G3, a fictional character featured in Kamen Rider Agito G3 (company), or "Good Governance Group", British corporate security and intelligence company G3 Ministries, a Reformed Baptist ministry in the United States that hosts the G3 Conference G-3 visa, a type of non-immigrant visa allowing travel to the United States G-III Apparel Group, a clothing manufacturing company G3 Canada, a Canadian grain company and successor to the Canadian Wheat Board
See also 3G (disambiguation) GGG (disambiguation)