| Acronym | Definition |
|---|
| DSN | Data Source Name (database source) |
| DSN | Deep Space Nine (Star Trek) |
| DSN | Defense Switched Network (formerly AUTOVON) |
| DSN | Deep Space Network |
| DSN | Data Set Name |
| DSN | Defense Secure Network |
| DSN | Dieppe Scène Nationale (French theatre group) |
| DSN | Direction du Service National (French: Direction of the National Service) |
| DSN | Doctor of Science in Nursing |
| DSN | Defense System Network |
| DSN | Delta Scuti Network |
| DSN | Division Principale de la Sécurité des Installations Nucléaires (French: Main Division of Safety of Nuclear Installations; Switzerland) |
| DSN | Dejerine-Sottas Neuropathy |
| DSN | Deep South Network |
| DSN | Deployed Soldiers Network |
| DSN | Duration of Severe Neutropenia |
| DSN | Digital Syndicate Network, LLC (music website) |
| DSN | Defense Satellite Network |
| DSN | Defense Services Network |
| DSN | Disposition Service Notification |
| DSN | Dana Supplier Network |
| DSN | Data Structure Navigator |
| DSN | Dermal Septic Necrosis |
| DSN | Digest Safety Net (website) |
| DSN | Dedicated Secure Network |
| DSN | Defense Subscriber Network |
| DSN | Digital System Network |
| DSN | Defense Stock Number |
| DSN | Driver Support Network (Fleet Support Group, UK) |
| DSN | Dogbert Static Network (Dilbert comic) |
| DSN | Diplomatic Studies Network |
| DSN | Digital Services Network, Inc. |
| DSN | Dual Shelf Network |
| DSN | Drop Ship Notification |
| DSN | Department Service Number |
| DSN | Devil Sticks Network |
| DSN | Distributed Simulations Network |
| DSN | Drug Store News (publication) |
| DSN | Dialysis Surveillance Network |
| DSN | Digital Signal |
| DSN | Digital Secure Network |
| DSN | Digital Subscriber Network |
| DSN | Digital Switched Network |
| DSN | Delivery Status Notification (SMTP) |
| DSN | Distributed Sensor Networks |
| DSN | Direct Shopping Network |
| DSN | Dependable Systems and Networks |
| DSN | Diabetes Specialist Nurse |
| DSN | Digital Sports Network |
| DSN | Device Serial Number |
| DSN | Don't Stop Now |
| DSN | Distributed Systems Network |
| DSN | Document Serial Number |
| DSN | Domain Server Name |