LER

LER or Ler may refer to:

• Ler, Norway, a village in the municipality of Melhus, Norway
• "Ler" books, a trilogy by M. A. Foster
• Label Edge Router, a term used to define an edge-most router in an IP/MPLS network
• Larry LaLonde, nicknamed "Ler", guitarist of the rock band Primus
• Light-emitting resistor, the working principle of an incandescent light bulb
• Leytonstone High Road railway station, London, England
• Liquid epoxy resin, a precursor to coatings and flooring material
• Loss Exchange Ratio, a military calculation of comparative casualties of war
• London Electric Railway, later part of the London Underground
• The Loyal Edmonton Regiment, an infantry unit of the Army Reserve Canadian Forces
• Luminous efficacy of radiation, for light sources, the ratio of luminous flux to power
• Lunar Electric Rover, a vehicle designed by NASA for extra-vehicular activity on the lunar surface.
• Elite One Championship (French: Ligue Élite de Rugby), a French rugby league
• Ler (mythology), a sea god in Irish mythology also known as Lir
• LER, Local Equipment Room