CDG
- ADR (treaty)
- CAIA Delay-Gradient
- CD+G
- CDG Express
- CDG Group
- CDMA
- Caisse de dépôt et de gestion
- Calcium diglutamate
- Casual Dining Group
- Cave Diving Group
- Chamari language
- Chandigarh Junction railway station
- Charles de Gaulle
- Charles de Gaulle Airport
- ComfortDelGro
- Comme des Garçons
- Comédie de Genève
- Congenital disorder of glycosylation
- Costume Designers Guild
- Council for a Democratic Germany
- Gulf Cartel
- Macmillan of Canada
- Shandong Airlines
- Wargaming