| Abbreviation | Definition |
|---|---|
| LELP | Low Energy Low Protein |
| LEM | Life Energy Motion |
| LEMAO | Least Energy Minimal Atomic Orbital |
| LEMI | Laboratory for Energy and Microsystems Innovation |
| LEMP | Lesotho Energy Master Plan |
| LEMS | Local Energy Measurement Stations |
| LEMS | low energy mass spectrometry |
| LENS | Large Energy National Shock |
| LENS | Low Energy Neutrino Spectroscopy |
| LEPA | Louisiana Energy and Power Authority |
| LEPA | Louisiana Energy Power Authority |
| LEPA | Low Energy Precise Application |
| LEPA | Low Energy Precision Application |
| LEPD | Low Energy Particle Detector |
| LEPD | Low Energy Photon Detector |
| LEPTS | Low Energy Particle Track Simulation |
| LER | Low Energy Ring |
| LETS | Local Energy Trading System |
| LETS | Local Energy Transfer System |
| LEWA | Light Energy Workers Association |