BT or Bt may refer to:
BTS, also known as Bangtan Boys, is a seven-member South Korean boy band formed by Big Hit Entertainment.
BT Group plc (trading as BT) is a holding company which owns British Telecommunications plc, a British multinational telecommunications services company with head offices in London, United Kingdom.
Btrfs (B-tree file system, pronounced as "butter F S", "better F S", "b-tree F S", or simply by spelling it out) is a file system based on the copy-on-write (COW) principle, initially designed at Oracle Corporation for use in Linux.
BtoB (; Korean: 비투비; acronym for Born to Beat) is a South Korean boy group formed in 2012 by Cube Entertainment.
The BTR-60 is the first vehicle in a series of Soviet eight-wheeled armoured personnel carriers (APCs).
Brian Wayne Transeau (born October 4, 1970), better known by his stage name BT, is an American music producer, composer, technologist, audio technician, multi-instrumentalist, singer, and songwriter.
The BTR-80 (Russian: бронетранспортер/Bronetransporter, literally "Armoured Transporter") is an 8x8 wheeled amphibious armoured personnel carrier (APC) designed in the USSR.
The BTR-50 (BTR stands for Bronetransporter (БТР, Бронетранспортер), literally "armored transporter") is a Soviet amphibious armored personnel carrier (APC) based on the PT-76 light tank.