G20 or G-20 or Group of 20 may refer to:
G20 developing nations, a trade negotiations bloc of 20 countries
G20 industrial nations, an unrelated economic forum of 20 countries, formed in 1999 (G8 + Argentina, Australia, Brazil, China, India, Indonesia, Mexico, Saudi Arabia, South Africa, South Korea, Turkey + current European Union presiding country)The
Infiniti G20 automobileThe
Chevrolet G20 automobile
Maryhill,
postcode prefix of the district in
Glasgow,
ScotlandA group of highly selective independent secondary schools in the English speaking world, founded in 2006 by Anthony Seldon, the Master of
Wellington CollegeThe
Glock 20 firearm
County Road G20 in Monterey County, California
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