| Abbreviation | Definition |
|---|---|
| TMCL | Topic Map Constraint Language |
| TMCL | Trinamic Motion Control Language |
| TMD | Text Mode Desktop |
| TMDS | Task Management Data Storage |
| TMDS | Transition Minimized Differential Signaling |
| TMF | Terminological Markup Framework |
| TMI | Too Much Information |
| TMI | Transition Migration And Implementation |
| TML | Template Markup Language |
| TML | Topology Macro Language |
| TML | Trivial Markup Language |
| TMO | Thermo- Magneto- Optic technology |
| TMO | Topic Map Object |
| TMR | Triple Modular Redundancy |
| TMX | Training Matrix |
| TN | Tunisia |
| TNEF | Transport Neutral Encapsulation Format |
| TNGST | Tamil Nadu General Sales Tax |
| TNT | Tried N True |
| TOAST | The Oversized Attribute Storage Technique |