CGM
- Bavarian State Library
- CGM (rap group)
- CMA CGM
- CTVglobemedia
- Camiguin Airport
- Cassava green mite
- Chloë Grace Moretz
- Computer Games Magazine
- Computer Graphics Metafile
- Conjugate gradient method
- Conspicuous Gallantry Medal
- Continuous glucose monitor
- Corn gluten meal
- Providence (religious movement)
- User-generated content