GCM

GCM may refer to:

Awards

• Good Conduct Medal (United States), a military award
• Grand Cross of the Order of Merit (Portugal)
• Knight Grand Cross Royal Order of Monisaraphon, post-nominal letters

Organizations

• GCM Resources, a British mining company
• Global Campaign for Microbicides
• Great Commission Ministries, an American Christian evangelistic organization
• Great Central Mines, a defunct Australian mining company

Science and technology

• Galois/Counter Mode, in cryptography
• General circulation model, or global climate model
• Google Cloud Messaging
• Greatest common measure
• Ground continuity monitor

Transport

• Claremore Regional Airport, in Oklahoma (FAA LID code)
• Owen Roberts International Airport, Grand Cayman, Cayman Islands (IATA code)
• Grand Central Madison, a commuter rail terminal

Other uses

• Global Compact for Migration, a proposed international treaty
• Grand Corps Malade (born 1977), French slam poet
• Gross combination mass
• Genesis Climber MOSPEADA, a Japanese animated TV series

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