BT

BT may stand for:

• Bacillus thuringiensis, see Bt
• Bhutan (ISO country code)
• Bodensee-Toggenburg-Bahn, the Swiss railway company
• Brian Transeau, the Dance music artist BT
• British Telecom
• Bt toxin
• B.T, the Danish tabloid newspaper
• BT-2, BT-5, BT-7, the Soviet fast tanks
• BT (Binary Terrain), a GIS DEM file format