G3, G03, G.III, G.3 or G-3 may refer to:

• Group of Three, a trio of countries consisting of China, India, and the United States
• G3 Free Trade Agreement between Colombia, Mexico and Venezuela
• EU three of France, Germany, and Italy

• 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
• USS G-3 (SS-31), an early U.S. Navy submarine
• Group of Three, a group dispatched to Lebanon in 1958, shortly before the 1958 Lebanon crisis

• 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

• 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.

• 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

• Galactic 03 (G03), a suborbital tourist spaceflight on 8 September 2023

• 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

• BYD G3, a 2009–2014 Chinese compact sedan
• Enranger G3, a 2014–present Chinese 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–present Chinese compact electric SUV

• 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

• G3 Beijing–Taipei Expressway, incomplete expressway intended to link mainland China and Taiwan

• G3 boats, from Yamaha Motor Corporation

• 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

• 3G (disambiguation)
• GGG (disambiguation)

Topics referred to by the same term

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