GCM
# 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
