NBT may refer to:

Arts and media

• National Black Theatre, New York, U.S.
• National Black Theatre (Australia) (1972–1977), Sydney, Australia
• Nature Biotechnology, a scientific journal
• Navbharat Times, an Indian newspaper
• Never Been Thawed, a 2005 American film
• The Next BIG Thing, a singing talent contest hosted by Radio Disney
• Nothing But Thieves, a British rock band

Organizations

• National Bank of Tajikistan
• National Book Trust, a publishing house under the Indian Ministry of Education
• National Broadcasting Services of Thailand, formerly Radio Thailand and Television of Thailand
• North Bristol NHS Trust, a hospital group in England.

Transport

• Norbiton railway station, London, National Rail station code
• Norse Atlantic Airways, ICAO code NBT

Science and technology

• Natural bobtail, an animal's tail which grows short or is missing
• NetBIOS over TCP/IP, a computer network protocol
• Neurophysiological Biomarker Toolbox, a computing toolbox used in biology
• New Breeding Techniques, a genetic engineering technology
• Nitro blue tetrazolium chloride, a chemical compound used in immunology
• Sodium bismuth titanate, a relaxor ferroelectric material