| CGMS | Casa Grande Middle School 
| Others |
| CGMS | Cedar Grove Middle School
| Others |
| CGMS | Center for Guided Montessori Studies
| Others |
| CGMS | Centre for Geoanalytical Mass Spectrometry
| Others |
| CGMS | Chestnut Grove Middle School
| Others |
| CGMS | China Grove Middle School
| Others |
| CGMS | Computer Graphics Multimedia and Security
| Others |
| CGMS | Continuous Glucose Monitoring System
| Others |
| CGMS | Continuous Glucose Monitoring Systems
| Others |
| CGMS | Coordination Group for Meteorological Satellites
| Others |
| CGMS | Coordination on Geostationary Meteorological Satellites
| Others |
| CGMS | Copy Generation Management System
| Others |
| CGMS | Copy Guard Management System
| Others |
| CGMS | Cottage Grove Middle School
| Others |
| CGMS | Crop Growth Monitoring System
| Others |
| CGMS | International Workshop on Computer Graphics, Multimedia, and Security
| Others |