| Rank | Abbreviation | Meaning |
|---|
| ***** | TLAS | Taiwan Landscape Architects Society
| |
| ***** | TLAS | Tunable Laser Absorption Spectroscopy
| |
| ***** | TLAS | Terminal Low Amplitude Signals
| |
| **** | TLAS | Territorial Local Authorities
| |
| **** | TLAS | Toledo Legal Aid Society
| |
| **** | TLAS | Three Letter Acronyms
| |
| *** | TLAS | Traffic Light Awareness Scheme
| |
| *** | TLAS | Teaching Learning and Assessment Survey
| |
| *** | TLAS | Test Language for Avionics Systems
| |
| *** | TLAS | Transactions of the Leicestershire Archaeological Society
| |
| *** | TLAS | Tablets for Learning and Academic Success
| |
| *** | TLAS | Timber License Agreements
| |
| ** | TLAS | TDRSS Look Angle System
| |
| ** | TLAS | Timber Legality Assurance System
| |
| ** | TLAS | Trouble Locating and Analysis System
| |
| ** | TLAS | Trade Locator Assistance System
| |
| ** | TLAS | Tactical, Logical and Air Simulation
| |
| ** | TLAS | Thai Laboratory Accreditation Scheme
| |
| ** | TLAS | Thai Laboratory Accreditation System
| |
| ** | TLAS | Theme from Love American Style
| |
| * | TLAS | Turtle Lightning Amiga Software
| |
| * | TLAS | Two Level Address Storage
| |
| * | TLAS | TDRS Look Angle System
| |
| * | TLAS | Three Letter Abbreviations
| |
| * | TLAS | Treatment of Liquid Aluminum Silicon
| |