LER
LER stands for:
- Label edge router, see Multiprotocol Label Switching
- Land Equivalent Ratio , key figure for calculating the yield in mixed crops
- State Parents' Council
- District of Leer , Germany (license plate)
- Laser Airlines , a Venezuelan airline (ICAO code)
- Lifestyle-ethics-religious studies , subject in the state of Brandenburg
- the Brazilian League of Revolutionary Strategy
