BBT
- Air Bashkortostan
- Barbier, Benard, et Turenne
- Barclays Bank Tanzania
- Basal body temperature
- Bhaktivedanta Book Trust
- Big Bang
- Big Bang (disambiguation)
- Big Bang Theory (Harem Scarem album)
- Big Bang Theory (Styx album)
- Big Bang Theory (disambiguation)
- Big Big Train
- Big Biz Tycoon
- Birati railway station
- Black box theater
- Borletti-Buitoni Trust
- Brenner Base Tunnel
- Brighton Ballet Theater
- Brooklyn–Battery Tunnel
- Bubble tea
- Bujinkan
- Bukit Batok MRT station
- The Big Bang Theory
- The Big Bang Theory (Family Guy)
- Toyama Television