TCSB
| Acronym | Definition |
|---|---|
| TCSB | Traffic Control State Block |
| TCSB | Trust & Custody Services Bank (Japan) |
| TCSB | Technical Client Service Bureau (Universal Service Administrative Company) |
| TCSB | Third Country Supply Base |
| TCSB | Tri-County Symphonic Band (Sicklerville, NJ) |