| Acronym | Definition |
|---|
| TIAC➣Tourism Industry Association of Canada |
| TIAC➣The Internet Access Company |
| TIAC➣This Is A Call (Foo Fighters song) |
| TIAC➣Turbine Inlet Air Chilling (also known as Turbine Inlet Air Cooling; central cooling system) |
| TIAC➣Technical Identification and Analysis Center |
| TIAC➣Toda International Advisory Council (Toda Institute; Japan) |