The G20 is an international group of 20 major economies. The term is also used to refer to any of the G20 summits.

Look up G20 in Wiktionary, the free dictionary.

G20 may also refer to:

• G20 developing nations, a trade negotiations bloc
• G20 (film), an upcoming American action thriller film
• G20 Research Group at University of Toronto
• BMW 3 Series (G20)
• G20 (inch units) command in G-code
• G20 version of the Infiniti G-series (Q40/Q60) car
• G20 version of the Chevrolet Van
• G20 model of car manufactured by Ginetta Cars
• Ginetta Junior Championship, in motor racing, formerly G20 Cup
• G20 Schools, an association
• County Route G20 (California)
• G20 Qingdao–Yinchuan Expressway, in China
• Bendix G-20, a computer
• Gribovsky G-20 USSR aircraft in mid-1930s
• Grumman JF Duck G-20, amphibious biplane
• Maryhill, Glasgow, Scotland, postcode

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