| 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 |