TLSM
| Acronym | Definition |
|---|---|
| TLSM | The Living Savior Ministries (Justin, TX) |
| TLSM | Thymic Lymphoma Susceptible Mouse |
| TLSM | Tramo Libre Sin Muerte (Spanish: No-Kill Free Section; fishing designation; various locations) |
| TLSM | Thinking-Logic-Story-Media (business communication) |
| TLSM | Transport Layer Security Model |
| TLSM | Threshold-Linear Sire-Maternal Grandsire (animal science) |
| TLSM | Trauma Life Support in Motorsport |