| Acronym | Definition |
|---|
| THAC➣Thomas Hassall Anglican College (Australia) |
| THAC➣Town Hall Arts Center (Littleton, CO) |
| THAC➣Troy Has a Camera |
| THAC➣The Hamilton and Alexandra College (Australia) |
| THAC➣Transgender Health Action Coalition (Philadelphia, PA) |
| THAC➣Toronto Haiti Action Committee (Canada) |
| THAC➣The Health Arts College (Australia) |
| THAC➣The Health Awareness Centre (India; est. 1989) |
| THAC➣Triple-Helix Affinity Chromatography (DNA) |