| Acronym | Definition |
|---|
| TL | Toilet |
| TL | Top Level |
| TL | Tokelau |
| TL | Team Leader |
| TL | True Love |
| TL | Truckload |
| TL | They Live (movie) |
| TL | Texas League (AA minor league) |
| TL | Transmission Line |
| TL | Thallium |
| TL | Turn Left |
| TL | Timor Leste (East Timor, ISO code; formerly TP) |
| TL | Turbo Lister (Ebay selling tool) |
| TL | Total Loss |
| TL | Target Language (translation) |
| TL | Teeloeffel (German: teaspoon) |
| TL | Time-Life |
| TL | Tape Library |
| TL | Tenderloin (district of San Francisco, California) |
| TL | Team Liquid (online gaming community) |
| TL | Time Limited |
| TL | Tubal Ligation |
| TL | Throws Left (baseball) |
| TL | Test Laboratory |
| TL | Transport Layer |
| TL | Teacher Librarian |
| TL | Term Loan |
| TL | Transmission Loss |
| TL | Typhoon Lagoon (Disney) |
| TL | Technical Library |
| TL | Tough Luck |
| TL | Threat Level |
| TL | Target List |
| TL | Thermoluminescent |
| TL | Tomorrowland (Disneyland) |
| TL | Telelombardia (Italian TV Network) |
| TL | Thomson Learning |
| TL | Transport and Logistics |
| TL | Time Length |
| TL | Tradeline |
| TL | Time Lord (fictional race; Doctor Who) |
| TL | Tie Line |
| TL | Throw Line (sports) |
| TL | True Low |
| TL | Technical Leadership |
| TL | Turntable Ladder (on fire/rescue vehicles) |
| TL | Transfer Lines |
| TL | Talk Later |
| TL | Transmission Level |
| TL | Tangent Line (tanks and vessel industry) |
| TL | Transition Level |
| TL | Total Laryngectomy |
| TL | Task Leader |
| TL | Turbolift (Star Trek elevator; used in simming) |
| TL | Transform and Lighting (video accelerators) |
| TL | Trip Leader |
| TL | Türk Lirasi (Turkish Lira) |
| TL | Transports Lausannois (French; Swiss transportation company) |
| TL | Temporary Lodging |
| TL | Target Lock (video games) |
| TL | Threshold Logic |
| TL | Transit Level |
| TL | Time of Launch |
| TL | Termination Liability |
| TL | Transmission Lumineuse (French: Light Transmission) |
| TL | Technical Letter |
| TL | Time in Lieu (timesheets) |
| TL | Thin Leaf (plant physiology) |
| TL | Transfer Lock (US Navy rescue device) |
| TL | Touring Luxury (Acura automobile) |
| TL | Transaction Listing |
| TL | Techlive (TV) |
| TL | Tube Lumineux (French: Light Tube) |
| TL | Tous en Ligne (French Catholic magazine) |
| TL | Traffic Logging |
| TL | Transaction Length |
| TL | Transit Lane |
| TL | Truelink, Inc. |
| TL | TeamLAN (LAN gaming organization) |
| TL | Thusano Lefatsheng |
| TL | Trusted Label |
| TL | Transport/Loader |
| TL | Travel and Living Allowance |
| TL | Turquoise Labs (website) |
| TL | Tasking Letter |
| TL | Tube Luminescent / Fluorescent (Light) |
| TL | Tritium Loadout |
| TL | Tintin Licensing (Belgium) |