| Abbreviation | Definition |
|---|---|
| LHRC | Lobster Health Research Centre |
| LIDER | Lasallian Institute for Development and Educational Research |
| LIDR | Laboratory for Infectious Disease Research |
| LIMNA | Lausanne Integrative Metabolism and Nutrition Alliance |
| LIMRA | Life Insurance Marketing and Research Association |
| LIMRA | Life Insurance Marketing Research Association |
| LIR | Local Initiated Research |
| LIRF | Limited Irrigation Research Farm |
| LIRI | Lumbini International Research Institute |
| LIRL | Library Instructional Research Lab |
| LIRO | Logging Industry Research Organisation |
| LIRP | Learning Impact Research Project |
| LIRP | Local Internship Research Program |
| LISR | Library and Information Science Research |
| LITR | London Institute of Technology and Research |
| LLPT | Liquid Liquid Phase Transition |
| LLRC | Language Learning and Research Center |
| LLRC | Language Learning Research Center |
| LLRC | Leadership Learning Research Center |
| LLRV | Lunar Landing Research Vehicle |