| Acronym | Definition |
|---|
| TTR | Transthyretin |
| TTR | Ticket To Ride (World Snowboard Tour) |
| TTR | Transformer Turns Ratio (electric power transmission and distribution) |
| TTR | Time To Repair |
| TTR | Time to Read (AOL Time Warner literacy-mentoring program) |
| TTR | Tap Tap Revolution (game for the iPhone) |
| TTR | Type-Token Ratio |
| TTR | Target Tracking Radar |
| TTR | The Third Reich (infantry game) |
| TTR | Hereditary Transthyretin |
| TTR | Twin/Tone Records |
| TTR | Time To Run (equipment servicing) |
| TTR | Time to Resolve (incident management) |
| TTR | Toronto Terminals Railway Company |
| TTR | Trix Twin Railway (model railway) |
| TTR | Team Technique Racing (gaming) |
| TTR | Test Time Reduction |
| TTR | The True Rules (web TV talk show) |
| TTR | Touch Tone Receiver |
| TTR | The True Religion |
| TTR | Trinidad and Tobago Regiment |
| TTR | Time-To-React |
| TTR | Toyota Trail Riders |
| TTR | TCM-ISDN Timing Reference (ITU-T) |
| TTR | Terry's Texas Rangers (8th Texas Cavalry Regiment) |
| TTR | Top Tension Riser (drilling) |
| TTR | Tonapah Test Range |
| TTR | Timed Token Rotation |
| TTR | Tactical Training Range |
| TTR | Time to Try Reassignment (ITU-T) |
| TTR | Terrorist Threat Report |
| TTR | Thermal Test Reactor |
| TTR | Turbo Tech Racing |
| TTR | Turk Ticaret Rehberi |
| TTR | Technical Test Report |
| TTR | Turk Ticaret Rehberi (Turkeys Trade Guide) |
| TTR | Team Townend Racing (radio control car website) |
| TTR | Tee Time Reservations (golf) |
| TTR | Test, Troubleshoot and Repair (electronic device repair) |
| TTR | Technology Transfer Report |
| TTR | Time to Try Resynchronization (ITU-T) |
| TTR | Trend Tracking Report |
| TTR | Tissue Temperature Rise |
| TTR | Total Technology Resources, LLC (Philadelphia, PA) |
| TTR | Training Testing Revision |
| TTR | TAP Transceiver |
| TTR | Target Therapeutic Range (clinical treatment) |
| TTR | Todd Terry Rico (foosball company) |
| TTR | Talking Taco Radio |
| TTR | Telegraphic Transfer Reimbursement |