| Acronym | Definition |
|---|
| TMB | Tetramethylbenzidine |
| TMB | Tour du Mont Blanc (French: Tour of Mont Blanc; long distance walking trail) |
| TMB | Tourismus Marketing Brandenburg (Brandenburg, Germany) |
| TMB | Tamilnad Mercantile Bank Ltd. (India) |
| TMB | Telekom Malaysia Berhad (Malaysian telecommunications company; also seen as TM) |
| TMB | Technical Management Board |
| TMB | The Midnight Beast |
| TMB | The Martinez Brothers (band; New York) |
| TMB | Trio Madeira Brasil (Brazilian music) |
| TMB | Take Me Back |
| TMB | Trojan Marching Band (University of Southern California) |
| TMB | Twisted Metal: Black (video game) |
| TMB | Touch My Body (song) |
| TMB | The Moody Blues (band) |
| TMB | Third Millennium Bible |
| TMB | Too Many Birthdays |
| TMB | Technology Management and Business |
| TMB | Trench Mortar Battery |
| TMB | Text Me Back |
| TMB | Traffic Management Bureau (China) |
| TMB | Tropical Marine Biology (various schools) |
| TMB | Transports Municipals de Barcelona (Catalan) |
| TMB | The Monster Blog (website) |
| TMB | Tag Me Back (Nexopia) |
| TMB | Tech-Marine Business |
| TMB | Training Management Branch |
| TMB | Too Much Booze |
| TMB | Traffic Manager Board |
| TMB | Kendall-Tamiami Executive Airport, Miami, FL, USA (airport code) |
| TMB | The Miracle Blades (cutlery) |
| TMB | Terminating Message Buffers |