TB
- Boeing TB
- Brightness temperature
- Growth medium
- Halfback (American football)
- List of torpedo boats of the United States Navy
- Mycobacterium tuberculosis
- T.B. (Thompson Brothers)
- TB Tvøroyri
- TB, Maryland
- TV (disambiguation)
- Tablespoon
- Taco Bell
- Tampa Bay
- Tampa Bay Buccaneers
- Tampa Bay Lightning
- Tampa Bay Rays
- Teboil
- Terabit
- Terabyte
- Terbium
- Terry Bradshaw
- Test bench
- Thunderbolt (interface)
- Tom Brady
- Torpedo boat
- Total bases
- TotalBiscuit
- Tuberculosis