| Abbreviation | Definition |
|---|---|
| TBX | The Book Exchange |
| TBZ | The Buffett Zone |
| TBZ | Tribhovandas Bhimji Zaveri |
| TC | Target Communications |
| TC | Target Company |
| TC | Test Center |
| TC | Theatre Company |
| TC | Tramway Company |
| TC | Tramwell Crow |
| TC | Transport Canada |
| TCA | Thomas Comitta Associates, Inc |
| TCA | Trans Canada Airlines |
| TCAS | Treasure Coast Advertising Specialties |
| TCB | The Conveyor Belt |
| TCB | Trading Corporation of Bangladesh |
| TCB | Trouble Comes Back |
| TCBS | Tri-County Behavioural Services |
| TCBY | The Country's Best Yogurt |
| TCC | Technology Central Company |
| TCC | The Cargo Company |