| Abbreviation | Definition |
|---|---|
| CMD | Cootamundra, New South Wales, Australia |
| CME | Ciudad Del Carmen, Mexico |
| CMF | Chambery, France |
| CMG | Aeroporto Internacional de Corumba, Corumba, Mato Grosso do Sul, Brazil |
| CMG | Corumbá International Airport |
| CMH | Columbus International Airport, Columbus, Ohio USA |
| CMI | University of Illinois Willard Airport, Champaign-Urbana, Illinois USA |
| CMJ | Chi Mei, Taiwan |
| CMJ | Chi Mei, Taiwan China |
| CMK | Club Makokola, Malawi |
| CMN | Mohamed V Airport, Casablanca, Morocco |
| CMO | Obbia, Somalia |
| CMQ | Clermont, Queensland, Australia |
| CMU | Dundiawa, Papua New Guinea |
| CMW | Camaguey, Cuba |
| CMX | Houghton County Memorial Airport, Hancock, Michigan USA |
| CMY | Sparta/Fort McCoy Airport, Sparta, Wisconsin USA |
| CNB | Coonamble, New South Wales, Australia |
| CNB9 | Lake Simcoe Regional Airport, Barrie-Orillia-Oro, Canada |
| CNC | Coconut Island, Queensland, Australia |