TX
- Air Caraïbes
- Boeing T-7 Red Hawk
- Canon TX
- Caspase 4
- Exeed TX
- Fairthorpe Cars
- Fenix TX
- Howmet TX
- LEVC TX
- Lexus TX
- Palm TX
- RS-232
- Sony Xperia TX
- Sperwill TX
- T-X
- T-X program
- TNM staging system
- TV Tokyo
- TX Camelopardalis
- TX Digital Illusions
- TX Group
- TX Network
- TX Piscium
- TX Watch Company
- Texas
- Therapy
- Traction (orthopedics)
- Transmission (telecommunications)
- Treatment group
- Tsukuba Express
- Tx (digraph)
- Van Hool