| Abbreviation | Definition |
|---|---|
| TTL | Tropical Trailer Leasing Corporation |
| TTLL | Tian Teck Land Ltd |
| TTM | Tata Motors Limited |
| TTM | Technologie Transfer Marburg |
| TTM | The Tractor Maniac |
| TTMC | The Tree Management Company |
| TTMC | The Turnaround Management Company |
| TTML | Tata Teleservices Maharashtra Ltd |
| TTNC | The Telephone Number Company |
| TTNQ | Tourism Tropical North Queensland |
| TTO | Texas Tactical Operation |
| TTOPCO | Taq Taq Operating Company |
| TTP | Turn Table Production |
| TTPC | The Travel Partnership Corporation |
| TTPC | Trans Tunisian Pipeline Company |
| TTPI | The Turning Point Inc |
| TTPI | Transport and Traffic Planners Inc |
| TTPL | Tittan Time Products Ltd. |
| TTR | Technical Training Resources, Inc. |
| TTR | Tesla Technology Research |