LTRS
| Acronym | Definition |
|---|---|
| LTRS | Litres |
| LTRS | Launch and Test Range System (US Air Force) |
| LTRS | Langley Technical Report Server (NASA) |
| LTRS | letter size (US Postal Service) |
| LTRS | League Tables and Ranking Systems |
| LTRS | Laboratory of Tree-Ring Science |
| LTRS | Laser Tweezer Raman Spectroscopy |
| LTRS | Library Research and Technical Services (journal) |
| LTRS | Louisiana Teacher Retirement System |