| Acronym | Definition |
|---|
| TMT | Technology, Media, Telecommunications |
| TMT | Thirty-Meter Telescope |
| TMT | Trail Making Test (clinical psychology test) |
| TMT | Top Management Team |
| TMT | Traffic Management (Bellcore) |
| TMT | Too Much Time |
| TMT | Terror Management Theory (psychology) |
| TMT | Top Management Teams |
| TMT | Tarsometatarsal |
| TMT | Thermo-Mechanical Treatment |
| TMT | The Manhattan Transfer (jazz group) |
| TMT | Thousand Metric Tons |
| TMT | Tandem Mass Tags |
| TMT | Transition Management Team |
| TMT | Tread Mill Test |
| TMT | Task Management Tool |
| TMT | Twenty Mule Team |
| TMT | Transportation Motor Transport |
| TMT | Technology Management Team |
| TMT | Training Management Tool (US Coast Guard) |
| TMT | Team Mermillod Triathlon (French: Mermillod Triathlon Team) |
| TMT | Trainer Management Team |
| TMT | Thermal Management Technologies (satellite infrared instruments; North Logan, UT) |
| TMT | Tennis Master Tour (French student tennis tournament) |
| TMT | Tube Metal Temperature |
| TMT | Tactical Movement Team (US DoD) |
| TMT | Temporal Motivation Theory |
| TMT | Translation Memory Tools |
| TMT | Theater Missile Tracker |
| TMT | Transonic Model Tunnel |
| TMT | Tracing Management Technology |
| TMT | Tanker Mooring Terminal |
| TMT | Tactical Mission Trainer |
| TMT | Tetramethyltetrazene |
| TMT | Transportation Maintenance Technique |
| TMT | Tamil Movie Tracker (website) |
| TMT | TOW Missile Transporter |
| TMT | Transportation Movement Team |
| TMT | Total Maintenance Time |
| TMT | Totally My Type |
| TMT | Thorn Micro Technologies, Inc. |
| TMT | Transmission Master Terminal |
| TMT | Thanvi Media and Technologies Ptv Limited (Karachi, Pakistan) |
| TMT | Thermomorphtechnology (footwear) |
| TMT | Tailor Made Tours (various locations) |
| TMT | Transformational Medical Technology (US DoD) |
| TMT | The Modding Theater (game forum) |