| Acronym | Definition |
|---|
| CDN | Canadian/Canada |
| CDN | Content Delivery Network |
| CDN | Content Distribution Network |
| CDN | Crédit du Nord (French bank) |
| CDN | Centre Dramatique National (French: National Drama Center) |
| CDN | Call-Disconnect-Notify (Cisco) |
| CDN | Canadian Dairy Network |
| CDN | Certified Dietitian Nutritionist |
| CDN | Coupling Decoupling Network |
| CDN | Circuiti Diretti Numerici |
| CDN | Certificat De Navigabilité |
| CDN | Certified Dialysis Nurse |
| CDN | Consolidated Data Network |
| CDN | Cooperation and Development Network (Italy) |
| CDN | Côtes-Des-Neiges (Montreal district) |
| CDN | Centre de Documentation Nationale |
| CDN | Ciag dalszy nastapi (Polish: To Be Continued) |
| CDN | Control Directory Number |
| CDN | CDR Discrepancy Notice (NASA) |
| CDN | compressed dial number (US DoD) |
| CDN | Community Day Nursery (UK) |
| CDN | Coordinates Definitions and Notations |
| CDN | Call Processing/Database Node |
| CDn | Complete Divine (roleplaying games, Dungeons & Dragons) |
| CDN | Connect Direct Network |
| CDN | Competitive Digital Network (Canada) |
| CDN | Compressor Discharge Nozzle (jet engine) |
| CDN | Consolidated Dial Network |
| CDN | Changed Dimension Notification |
| CDN | Call Delivery Node |
| CDN | Common Dialog Notification (Windows programming) |
| CDN | Centre de Normalisation (French: Standardization Center) |
| CDN | Commission du Dividende Numérique (French: Digital Dividend Commission) |
| CDN | Customer Defined Network (Nortel) |
| CDN | Centrum Doskonalenia Nauczycieli (Polish: Teacher Training Center) |
| CDN | Chicago Daily News (newspaper; Chicago, IL) |
| CDN | Chinese Domain Name |
| CDN | CodeGear Developer Network (newsletter; Borland) |
| CDN | Central Daily News |
| CDN | County District Number (Texas) |