| Acronym | Definition |
|---|
| TCCA | Trichloroisocyanuric Acid |
| TCCA | Transport Canada Civil Aviation |
| TCCA | Tillamook County Creamery Association (Tillmaook, Oregon) |
| TCCA | Texas Court of Criminal Appeals |
| TCCA | Transitional Cell Carcinoma |
| TCCA | Technical Committee on Computer Architecture |
| TCCA | The Church Christian Academy (Sutersville, PA) |
| TCCA | Toronto City Center Airport (Canada) |
| TCCA | Time-Critical Communication Architecture |
| TCCA | Taurus Car Club of America |
| TCCA | Tai Chi Culture Association (California) |
| TCCA | Texas Corriente Cattle Association (est. 1991) |
| TCCA | Toy Car Collectors Association |
| TCCA | Telephone Card Collectors Association |
| TCCA | Theater Communications Command - Army |
| TCCA | Traditional Combatant Commander Activities |
| TCCA | Tri-County Contracting Association (Michigan) |