LLSR
| Acronym | Definition |
|---|---|
| LLSR | Lost Lake Scout Reservation (Boy Scouts of America) |
| LLSR | Lifelong Learning and Service Recognition (Academy of General Dentistry) |
| LLSR | Londonderry and Lough Swilly Railway |
| LLSR | Linear Least Square Regression (mathematics) |
| LLSR | Long-Latency Stretch Response |