| Acronym | Definition |
|---|
| ATLAS | Automatically Tuned Linear Algebra Software (software library) |
| ATLAS | Advisory Team for Large Applications (UK) |
| ATLAS | Atmospheric Laboratory for Applications and Science |
| ATLAS | A Toroidal LHC Apparatus (experiment at the CERN physics laboratory) |
| ATLAS | Assessment of Treatment with Lisinopril And Survival |
| ATLAS | Abbreviated Test Language for All Systems |
| ATLAS | Architecture and Tools for Linguistic Analysis Systems |
| ATLAS | Argonne Tandem Linear Accelerator System |
| ATLAS | Abbreviated Test Language for Avionics Systems |
| ATLAS | All Terrain Lifter, Army System |
| ATLAS | Alliance for Tax, Legal, and Accounting Seminars |
| ATLAS | Applied Technologies for Learning in the Arts and Sciences |
| ATLAS | Airborne Terrestrial Applications Sensor (NASA Stennis Space Center) |
| ATLAS | Airborne Tunable Laser Absorption Spectrometer |
| ATLAS | Autonomous Temperature Line Acquisition System |
| ATLAS | Artificial Tele-Empathic Logistics Analysis System (fictional, Starcraft) |
| ATLAS | All-Optical Terabit-Per-Second Lambda Shifted Transmission |
| ATLAS | Automated Tray Label Assignment System (US Postal Service) |
| ATLAS | AToroidal LHC ApparatuS |
| ATLAS | Accounting Transaction Ledger Archival System |
| ATLAS | Association of Technical Lighting and Access Specialists (UK) |
| ATLAS | Anchorage Transparent LAN Service |
| ATLAS | Advanced Testing Line for Actinide Separations |
| ATLAS | Atmospheric and Terrestrial Laboratory for Applications in Space |
| ATLAS | Advanced Traffic Laboratory for Automated Systems |
| ATLAS | Advanced Technology Laser System |
| ATLAS | Advanced Technology Loading Articulated Shiplifts (Syncrolift) |
| ATLAS | Army Tactical Light Analysis System |
| ATLAS | Active Teens Leading And Supervising |
| ATLAS | Automated Time Labor Attendance System |
| ATLAS | USCG Intelligence Center Washington |
| ATLAS | Advanced Target Location And Strike |
| ATLAS | Advanced Technology Launching Study program |
| ATLAS | Advanced Thermal Limit Analysis System |