| TSAC | Tactical Strength and Conditioning 
| Others |
| TSAC | Telephone Services Advisory Committee
| Others |
| TSAC | Tennessee Student
| Others |
| TSAC | Tennessee Student Assistance Corporation
| Others |
| TSAC | Terminal Services Advanced Client
| Others |
| TSAC | Times Square Advertising Coalition
| Others |
| TSAC | Tokyo Society for the Application of Currying
| Others |
| TSAC | Tourist Signing Advisory Committee
| Others |
| TSAC | Towing Safety Advisory Committee
| Others |
| TSAC | Tracking System Analytical Calibration
| Others |
| TSAC | Traffic Safety Advisory Committee
| Others |
| TSAC | Transit Services Advisory Committee
| Others |
| TSAC | Transportation Safety Advisory Committee
| Others |
| TSAC | Transportation Services Advisory Committee
| Others |
| TSAC | Transportation Services Advisory Council
| Others |
| TSAC | Trumbull Student Assistance Consortium
| Others |
| TSAC | Twentse Studenten Alpen Club
| Others |