TMR may refer to:
Companies[edit]
- Tokio Millennium Re Ltd., is a reinsurance company headquartered in Bermuda
- Transports de Martigny et Régions, a Swiss railway company
People[edit]
- Matthew Berry (born 1969), known as TMR, a fantasy football player
- The Mexican Runner or Piotr Delgado Kusielczuk, a speedrunner
- TM Revolution, the Japanese musician Takanori Nishikawa
Other uses[edit]
- Aguenar – Hadj Bey Akhamok Airport, IATA airport identifier
- Department of Transport and Main Roads, Queensland, Australia
- Jewish Babylonian Aramaic, ISO 639-3 language code
- Town of Mount Royal, Quebec, Canada
- Rolls-Royce Thrust Measuring Rig, VTOL aircraft
- Tetramethylrhodamine, a derivative of rhodamine
- Catalog numbers of Third Man Records
- Total Mixed Ration, a method of feeding cattle
- Transmyocardial revascularization, heart disease treatment
- Transnistrian Moldovan Republic, one of the long-form names used for the breakaway Transnistria region
- Triple modular redundancy, a computing voting system
- Tunnel magnetoresistance
- Trout Mask Replica, an experimental rock album by Captain Beefheart & His Magic Band
- The Morning Rush, a morning radio show by Monster RX 93.1