| Abbreviation | Definition |
|---|---|
| TCSC | Tipton Community School Corporation |
| TCSN | The Computer Shop Netlink |
| TCT | Total Christian Television |
| TCT | Total Closeness Technology |
| TCT | Trans Continental Talent |
| TCTC | tal Cost to Company |
| TCTC | The Clinical Trial Company |
| TCTC | The Cooling Tower Company |
| TCTS | Trust Company Of The South |
| TCU | Thompson Center Ugalde |
| TCV | The Complete Vessel |
| TCV | Turkish Commercial Vehicles |
| TCX | Texas Citrus Exchange |
| TCY | Taking Care of You |
| TCY | Tien Chin Yu Machinery Manufacturing Company, Ltd. |
| TD | Technische Dienst |
| TDA | Team Disney Anaheim |
| TDA | Telecommunications Delivery Americas |
| TDBA | Trincomalee District Badminton Association |
| TDBH | Telefonica Data Brasil Holding |