| Abbreviation | Definition |
|---|---|
| TLL | Thesaurus Linguae Latinae |
| TLM | The Little Mermaid |
| TLM | Transformer Lot Microphone |
| TLN | Taut Line Newsletter |
| TLN | Timeline with Jerry Rose |
| TLN | Total Living Network |
| TLP | The Liberian Post |
| TLP | Timber Lake Playhouse |
| TLS | The Last Survivors |
| TLS | The Lost Sombrero |
| TLS | Times Literary Supplement |
| TLT | The Literary Times |
| TLW | The Last Word |
| TLW | The Lone Wolves |
| TLY | IDA Network Station, Talaya, Russia |
| TLY | The Lost Years |
| TM | Tall Mike |
| TM | Temporal Morphologies |
| TMA | The Moose's Apprentice |
| TMA | Transcription Mediated Amplification |