| Abbreviation | Definition |
|---|---|
| TTJX | TTX Company |
| TTKX | Trailer Train (TTX Corporation) |
| TTKX | TTX Company |
| TTL | Tropical Trailer Leasing Corporation |
| TTLC | Tropical Trailer Leasing Corporation |
| TTLX | Trailer Train (TTX Corporation) |
| TTLX | TTX Company |
| TTLZ | Tropical Trailer Leasing Corporation |
| TTMX | Trailer Train (TTX Corporation) |
| TTMX | TTX Company |
| TTNU | Triton Container International |
| TTNX | Trailer Train (TTX Corporation) |
| TTNX | TTX Company |
| TTOX | Trailer Train (TTX Corporation) |
| TTOX | TTX Company |
| TTOZ | Totem Ocean Trailer Express |
| TTOZ | Totem Ocean Trailer Express Incorporated |
| TTPX | Trailer Train (TTX Corporation) |
| TTPX | TTX Company |
| TTPZ | Canadian National Railway |