| LER | Label Edge Router 
| Others |
| LER | Labor and Employment Relations
| Others |
| LER | Lactation Education Resources
| Others |
| LER | Lambertian equivalent reflectivity
| Others |
| LER | Lancer Evolution Rs
| Others |
| LER | Land Equivalent Ratio
| Others |
| LER | Landsman For Electrician (radio)
| Others |
| LER | Latent Energy Recovery
| Others |
| LER | Learning Evaluation and Research
| Others |
| LER | Least Error Rate
| Others |
| LER | Legal Entity Restructuring
| Others |
| LER | Leinster, Western Australia, Australia
| Others |
| LER | Level Error Rate
| Others |
| LER | Lexus Enform Remote
| Others |
| LER | Liberal Education Requirements
| Others |
| LER | Licensee Event Report
| Others |
| LER | Licensee Event Reports
| Others |
| LER | Lightweight Enterprise RSS
| Others |
| LER | Line Edge Roughness
| Others |
| LER | Link Error Rate
| Others |
| LER | Liquid Epoxy Resin
| Others |
| LER | Logansport and Eel River Short-Line
| Others |
| LER | Logansport and Eel River Short-Line Company Incorporated
| Others |
| LER | Logarithm Of Exchange Rate
| Others |
| LER | London Economic Region
| Others |
| LER | Long Electric Range
| Others |
| LER | Long Eye Relief
| Others |
| LER | Loss Exchange Ratio
| Others |
| LER | Low Endotoxin Recovery
| Others |
| LER | Low Energy Ring
| Others |
| LER | Lower Extremity Review
| Others |
| LER | Luminous Efficacy Of Radiation
| Others |
| LER | Luminous Efficiency Of Radiation
| Others |
| LER | Luminous Electronics Recycling
| Others |
| LER | Lunar Electric Rover
| Others |