TM
- .tm
- LAM Mozambique Airlines
- Majesty
- Melting point
- Struct tm
- TM (album)
- TM (cellular service)
- TM (triode)
- TM 65 mine
- TM Forum
- TM Supermarket
- TM domain
- TM-41 mine
- TM-46 mine
- TM-57 mine
- TM-62 series of mines
- TM-83 mine
- TM-89 mine
- Taskmaster (TV series)
- Telekom Malaysia
- Terametre
- Texas Mexican Railway
- Thames Measurement
- Thematic Mapper
- Thulium
- Tm ligands
- Toastmasters International
- Tokyo Metro
- Torpedoman's mate
- Toyota
- Traceability matrix
- TrackMania
- Trademark
- Trademark symbol
- Trans-Manhattan Expressway
- Transcendental Meditation
- Transition metal
- Translation memory
- Translational medicine
- Transport maximum
- Transverse mode
- Transverse myelitis
- Turing machine
- Turkmenistan