| Acronym | Definition |
|---|
| LTSP➣Linux Terminal Server Project |
| LTSP➣Lutheran Theological Seminary At Philadelphia |
| LTSP➣Long-Term Surveillance Plan (US Department of Energy) |
| LTSP➣Long-Term Site Productivity (soil study) |
| LTSP➣Long-Term Strategic Plan |
| LTSP➣Long Term Science Plan (NASA) |
| LTSP➣League of Tourism Students of the Philippines (est. 2007) |
| LTSP➣Lava Tree State Park (Hawaii) |