| Acronym | Definition |
|---|
| TMN | Telecommunications Management Network |
| TMN | Transmission |
| TMN | The Movie Network (Canada) |
| TMN | The Morning News (online magazine) |
| TMN | Telecommunication Management Network |
| TMN | Texas Moratorium Network (anti-death penalty group) |
| TMN | Tunable Matching Network (microwave theory) |
| TMN | Tourismus Marketing Niedersachsen (German: Tourism Marketing Lower Saxony; Lower Saxony, Germany) |
| TMN | Telecomunicações Móveis Nacionais SA (Portugal) |
| TMN | Telecom Moveis Nac (Portuguese telecommunications) |
| TMN | Tokio Marine Nichido (Japanese insurance company) |
| TMN | Trackline Multiunit Non-Return (US DoD) |
| TMN | The Map Network (Washington, DC) |
| TMN | Too Much Nudity |
| TMN | Touch Me Not |
| TMN | Tell Me Now |
| TMN | Tone-Masking Noise |
| TMN | The Minisode Network (trademark of Sony Pictures Television and MySpace) |
| TMN | Trailer Music News (website) |
| TMN | The Mafia Network (online MMORPG) |
| TMN | TrakcMania Nations |