| Acronym | Definition |
|---|
| TLD | Top-Level Domain (Internet) |
| TLD | Troy Lee Designs (racing merchandise retailer; Corona, CA) |
| TLD | The Living Dead |
| TLD | Top Level Domain |
| TLD | Tag Library Descriptor |
| TLD | Temporary Link Devaluation |
| TLD | Tag Library Descriptor (Java Server Pages and custom tag libraries) |
| TLD | Thermoluminescent Dosimeter |
| TLD | Typical Language Development |
| TLD | Third-Level Domain |
| TLD | The Living Daylights (James Bond Movie) |
| TLD | Thermoluminescent Dosimetry |
| TLD | The Last Dance (band) |
| TLD | Tramigo Landmark Data (Finland) |
| TLD | Thermoluminescent Detector |
| TLD | Top Level Design |
| TLD | Tous les Drivers (French: All Drivers) |
| TLD | The Last Don |
| TLD | Teacher Licensure Degree (Jones International University; Colorado) |
| TLD | Top Level Demonstration |
| TLD | Test of Language Development (PRO-ED) |
| TLD | Third-Location Decompression (National Defence and Canadian Forces) |
| TLD | Technical Logistics Data |
| TLD | Thermal Luminosity Device |
| TLD | Traffic Loading Device |
| TLD | Time Lag Discrimination |
| TLD | Tape Library Device (robotic backup tape libraries) |
| TLD | Townside, Longside, Downside (East Belfast Scouts, UK) |
| TLD | Transport and Logistics Data Set |
| TLD | Term Loan D |
| TLD | Twin Lamb Disease (metabolic condition) |
| TLD | Target Location and Designation |