TX, T-X, or Tx may refer to:
Texas, abbreviated as TX
Companies Consumer product companies TX Watch Company, a former watch company by the Timex Group
Media and telecommunication companies TX Digital Illusions, a former American video game developer TX Group, a Swiss media company TV Tokyo, a Japanese commercial broadcaster TX Network, a Japanese television network which flagship station is TV Tokyo
Transportation companies Air Caraïbes (IATA airline designator TX)
Electronics and machines Canon TX, a 35mm single-lens reflex camera Palm TX, a personal digital assistant Sony Xperia TX, a smartphone
Media Fenix TX, a pop punk band from Houston, Texas, formerly known as Riverfenix Fenix TX, the band's first album after their name change T-X (Terminatrix), the antagonist in the movie Terminator 3: Rise of the Machines
Science and technology Astronomy TX Camelopardalis, a star in the Camelopardalis constellation TX Piscium, a carbon star in the Pisces constellation Linguistics Tx (digraph) Medicine Caspase 4, an enzyme Therapy, Tx or Tx in medical shorthand Treatment group, in an experiment, such as basic research or clinical trials Traction (orthopedics) Transplant, in the context of organ transplantation In the TNM staging system for cancer: Size or extent of tumor cannot be evaluated Wildcard for any T stage (for example, a chemotherapy regimen prescribed for any T, any N, M1 = TxNxM1) Telecommunications Transmission (telecommunications), generally Tx, the transmit signal in the RS-232 serial communication protocol
Transportation Aircraft and airlines Boeing T-7 Red Hawk, known as the T-X until 2019 T-X program Sperwill TX, a British paramotor
Automobiles Exeed TX, a 2019–present Chinese mid-size SUV Fairthrope TX, a 1967 British sports coupe Howmet TX, a 1968 American sports prototype racing car LEVC TX, a 2017–present British electric taxi cab Lexus TX, a 2023–present luxury full-size crossover SUV
Buses TX series, a line of coaches manufactured by Van Hool Rail Tsukuba Express, a Japanese railway line abbreviated as TX