TOSM
| Acronym | Definition |
|---|---|
| TOSM | Ten Outstanding Students of Makati (Philippines) |
| TOSM | Teaching of School Mathematics (Japan) |
| TOSM | Thru Open Short Match (microwave calibration standards) |
| TOSM | The Oxford Street Montage (band) |
| TOSM | Train One, Save Many (RNLI campaign) |
| TOSM | Tenant Operations Systems Manager |