| TTR | Table Top Racing 
| Others |
| TTR | Tactical Takedown Rifle
| Others |
| TTR | Tactical Training Range
| Others |
| TTR | Take The Risk
| Others |
| TTR | Tale of Two Rivers
| Others |
| TTR | Talkgroup Trunked Recording
| Others |
| TTR | Tallahassee Trail Riders
| Others |
| TTR | Talleyrand Terminal Railroad
| Others |
| TTR | Talleyrand Terminal Railroad Company
| Others |
| TTR | Tanatoraja, Indonesia
| Others |
| TTR | Tangent Tangent Radius
| Others |
| TTR | Tap Tap Revenge
| Others |
| TTR | Targa Tasmania Rookie
| Others |
| TTR | Target Tracking Radar
| Others |
| TTR | Taste The Rainbow
| Others |
| TTR | Tatsushi Tetsuya and Revolution
| Others |
| TTR | Taxonomy Term Reference
| Others |
| TTR | Team Table Royal
| Others |
| TTR | Team Tidal Revalations
| Others |
| TTR | Technical Trading Rules
| Others |
| TTR | Technical Training Resources, Inc.
| Others |
| TTR | Technology Transfer Requirement
| Others |
| TTR | Technology Transfer Setting
| Others |
| TTR | Temporary Truck Route
| Others |
| TTR | Tesla Technology Research
| Others |
| TTR | Texas Truck Rodeo
| Others |
| TTR | The Tax Research
| Others |
| TTR | The Teen Realm
| Others |
| TTR | The Terrorist Resistance
| Others |
| TTR | The Training Registry
| Others |
| TTR | Thermal Transfer Ribbon
| Others |
| TTR | Think Tank Review
| Others |
| TTR | Thirsty Thursday Riders
| Others |
| TTR | Through The Road
| Others |
| TTR | Ticket To Ride
| Others |
| TTR | Tidewater Triumph Register
| Others |
| TTR | Tijuana and Tecate Railway (Talleyrand Terminal Railroad)
| Others |
| TTR | Tilt Table Ratio
| Others |
| TTR | Tiltrotor Test Rig
| Others |
| TTR | Time in Therapeutic Range
| Others |
| TTR | Time to Rate
| Others |
| TTR | Time To React
| Others |
| TTR | Time To Read
| Others |
| TTR | Time To Red
| Others |
| TTR | Time To Resolution
| Others |
| TTR | Time To Rest
| Others |
| TTR | Time to run
| Others |
| TTR | Time Trial Race
| Others |
| TTR | Time Trial Rules
| Others |
| TTR | To The Rescue
| Others |
| TTR | To The Rescue Web Design
| Others |
| TTR | Tonopah Test Range
| Others |
| TTR | Tony Thompson Racing
| Others |
| TTR | Torpedo Tube Roll
| Others |
| TTR | Torpedo Tube Rotation
| Others |
| TTR | Total Tech Resource
| Others |
| TTR | Touch Tone Required
| Others |
| TTR | Tourist Trophy Racing
| Others |
| TTR | Tout Terrain Route
| Others |
| TTR | Toy Trunk Railroad
| Others |
| TTR | Toyo Tire and Rubber Company
| Others |
| TTR | Toyota Trail Riders
| Others |
| TTR | Trabzon Tokyo Rio
| Others |
| TTR | Track Record
| Others |
| TTR | Track Track Record
| Others |
| TTR | Track-side Technical Room
| Others |
| TTR | Trade & Transport Review
| Others |
| TTR | Transaction Type Reference
| Others |
| TTR | Transactional Track Record
| Others |
| TTR | Transformation through Revitalization
| Others |
| TTR | Transformer Turns Ratio
| Others |
| TTR | Transition To Retirement
| Others |
| TTR | Transmission Trailer
| Others |
| TTR | Transport Travel Research, LTD.
| Others |
| TTR | transthyretin
| Others |
| TTR | Trip To Remember
| Others |
| TTR | Trouble Ticket Resolving
| Others |
| TTR | Tumour Tissue Repository
| Others |
| TTR | Tweet Through Rate
| Others |
| TTR | Type Token Ratio
| Others |