| Acronym | Definition |
|---|
| ITN | Independent Television News (UK) |
| ITN | Institut Teknologi Nasional (Indonesian: National Institute of Technology) |
| ITN | In the News |
| ITN | Initial Training Network (various organizations) |
| ITN | International Travel News |
| ITN | Inverse Text Normalization |
| ITN | I Think Not |
| ITN | Interplanetary Transport Network (astronomy) |
| ITN | Insecticide-Treated Net(s) |
| ITN | Invitation to Negotiate |
| ITN | Identification of Training Needs (various locations) |
| ITN | International Tennis Number |
| ITN | Information Technology Networking (various locations) |
| ITN | Immune Tolerance Network |
| ITN | Independent Transportation Network |
| ITN | Internet Travel Network (online travel service) |
| ITN | Innovative Teachers Network (various locations) |
| ITN | Identification Tasking and Networking |
| ITN | Inside the Navy (publication) |
| ITN | Internal Transaction Number |
| ITN | Independent Telephone Network |
| ITN | International Transit Network |
| ITN | Interactive Television Network |
| ITN | Individual Tax Number (Canada) |
| ITN | Individual Telephone Number (porting) |
| ITN | Indiana Telecommunications Network |
| ITN | Intrathecally Injected Narcotics |
| ITN | Impedance Transformer Network (amplifiers) |
| ITN | IntelliJ Technology Network (computing) |
| ITN | Independent Telecommunication Network |
| ITN | Iranian Television Network |
| ITN | Inter Trauma Nexus (South Africa) |
| ITN | Information Transfer Node |
| ITN | Image Transmission Network |
| ITN | Industrial Terrorism Network |
| ITN | Instituto Transnacional (Spanish: Transnational Institute; Netherlands) |
| ITN | Identification Tasking & Networking |
| ITN | Inventory Tracking Number |
| ITN | International Translation Network (Beirut, Lebanon) |
| ITN | Integration Testing Network (Sprint) |
| ITN | Installation Transport Network |
| ITN | Inferior Tragal Notch (brain anatomy) |