G21

G21 may refer to:

• BMW 3 Series (G21), an automobile
• County Route G21 (California)
• Glock 21, a firearm
• Gribovsky G-21, a Soviet aircraft
• Grumman G-21 Goose, an American aircraft
• Ginetta G21, an automobile produced by Ginetta Cars
• G21 developing nations, a trade bloc also known as G20 developing nations

Topics referred to by the same term

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