CDG may refer to:
- IATA code for Charles de Gaulle Airport, in Paris, France
- Congenital disorder of glycosylation also known as "CDG Syndrome"
- Costume Designers Guild
- CD+G also known as "CD+Graphics", a format of Compact Disc including both audio and video graphics
- Charles de Gaulle, French general and politician
- Croix de guerre
- coup de grâce, a death blow of an already shot, but not yet dead, person during a military or civilian execution.
- Card-driven (war)game
- Calcium diglutamate
- the French aircraft carrier Charles de Gaulle
- Caisse de Dépôt et de Gestion A Moroccan Investment Bank
- Gulf Cartel Cartel de Golfo in Spanish