BT
BT may stand for:
- B.T. (tabloid), a Danish tabloid newspaper
- Brian Transeau, an American electronica musician known by the stage name BT
- BT Group, formerly known as "British Telecom"
- BT tank, any of a series of Soviet military tanks
- AirBaltic, an airline with the IATA code BT
- Bacillus thuringiensis, a bacterium which forms Bt toxins
- Bankers Trust, an banking organisation which operates as BT Financial Group in Australia
- Banca Transilvania, a bank in Romania
- baronet, a title in the British honours system abbreviated Bt
- Bathythermograph, a device used to obtain a record of temperature against depth in the ocean
- Belfast, as known by its UK post code BT
- Bhutan, as known by its ISO country code BT and internet domain .bt
- Binary Terrain, a GIS digital elevation model file format
- Bitstream Inc., a type foundry, as known by the abbreviation for their fonts
- BitTorrent, a peer-to-peer file sharing protocol
- Bluetooth, a wireless personal area network standard
- Bodensee-Toggenburg-Bahn, a former Swiss railway company
- Borås Tidning, the newspaper of Borås, Sweden
- Breakfast Television, a Canadian morning television program
- BunnyTrack, a non-violent game type for theUnreal Tournament video game
- Burton Taylor Theatre, known as The BT, in Oxford, United Kingdom
- Business Times, either of two newspapers published in Singapore and Malaysia
- Barton County, Kansas, as known by its "state county code" BT
- B.T. (.hack) a fictional character from the anime .hack//SIGN.
- Body thetan, part of Scientology doctrine.
- Bee Train, Japanese animation studio