| Acronym | Definition |
|---|
| TACS | Trauma and Acute Care Surgery |
| TACS | Transcranial Alternating Current Stimulation (brain) |
| TACS | Technology and Communication Systems |
| TACS | Total Access Communication System |
| TACS | Technical Assistance and Consulting Services (various organizations) |
| TACS | Temperature-Aware Computer Systems |
| TACS | Tactical Air Control System |
| TACS | Theater Air Control System |
| TACS | Theoretical Aspects of Computer Software (Conference) |
| TACS | Theory and Applications of Computational Science (International Conference) |
| TACS | Tiles and Architectural Ceramics Society (UK) |
| TACS | Time and Attendance Collection System (US Postal Service) |
| TACS | Tactical Air Control Squadron |
| TACS | Total Anterior Circulation Syndrome (medical) |
| TACS | Tracking and Control Station |
| TACS | Total Access Cellular System |
| TACS | Time and Attendance Control System |
| TACS | Tactical Air Command System |
| TACS | Tactical Auxiliary Crane Ship |
| TACS | Theater Army Communications System |
| TACS | Technical Assignment Control System |
| TACS | Tactical Acoustic Communications System |
| TACS | Transportable Atmospheric Characterization Station |
| TACS | Training Analysis and Computer Systems |
| TACS | Turbine Auxiliaries Cooling System (US NRC) |
| TACS | Texaco Advanced Control System |