TMSB
| Acronym | Definition |
|---|---|
| TMSB | The Magic School Bus (series) |
| TMSB | Tropomyosin, Skeletal Muscle Beta |
| TMSB | Turtle Mountain State Bank (Belcourt, ND) |
| TMSB | Train Miniature Sud Beaujolais (French: Miniature Train South Beaujolais; France) |
| TMSB | Titisan Modal Sdn. Bhd. (Malaysia) |