| Acronym | Definition |
|---|
| DTN | Direction Technique Nationale (French: National Technical Direction) |
| DTN | Dirichlet-to-Neumann (electric fields) |
| DTN | Deliver to Number |
| DTN | Data Transmission Network |
| DTN | Delay-Tolerant Networking |
| DTN | Développement Tremblant Nord (French real estate company) |
| DTN | Dépistage des Troubles Nutritionnels (French: Screening of Nutritional Disorders) |
| DTN | Disruption Tolerant Network |
| DTN | Dauphin Touch Network Pvt. Ltd. (India) |
| DTN | Diffusion Technique du Nord (French fireplace accessory company) |
| DTN | Defense-Technology News (blog) |
| DTN | Digital Telephone Network |
| DTN | Data Transfer Network |
| DTN | Duplex, Tray, Network (HP designator on LaserJet printers) |
| DTN | Daystar Television Network |
| DTN | Defence Telegraph Network (UK) |
| DTN | Defence Teleprinter Network (UK military) |
| DTN | Defense Telecommunications Network |
| DTN | Dysphagia Trained Nurse (UK) |
| DTN | Depth to NAPL (Non-Aqueous Phase Liquid) |