LTSF
| Acronym | Definition |
|---|---|
| LTSF | Long Term Storage Facility (hazardous materials) |
| LTSF | Long-Term Strategic Framework (various organizations) |
| LTSF | Low-Temperature Steam and Formaldehyde |
| LTSF | Lawrence Township School Foundation (Indianapolis, IN) |
| LTSF | Little Thompson Science Foundation (est. 1996) |