English abbreviations from led to len
- LED (Light-emitting diode)
- LEDA (Light, Easily Deployable by Air)
- LEDE (Lauren Evans Damien Elwood)
- LEDET (Law Enforcement Detachment)
- LEE (Leesburg International Airport)
- LEED (Leadership in Energy and Environmental Design, standard for Green Building design)
- LEEP (Liverpool Early Education Program)
- LEF (Lebakeng Airport)
- LEFT (Leprechauns, Elves, Fairies, And Trolls)
- Left ET (Left esotropia)
- LEG (Aleg Airport)
- LEGAD (Legal Advice)
- Le GAMSTAT (Le Groupement AéroMobilité de la Section Technique de l'Armeé de Terre)
- Legit. (Legitime, Legitimus ("Legally", "legitimate"))
- LEGO (Leg Godt)
- Legs (level emotion gad speed)
- LEH (Le Havre Octeville Airport)
- LEI (Almería International Airport)
- LEIS (Low Energy Ion Scattering)
- LEJ (Leipzig/Halle Airport)
- LEK (Tata Airport (Labé Airport))
- LEL (Lake Evella Airport)
- LEM (Lemmon Municipal Airport)
- LEMA (Laboratory for Economics Management and Auctions, Pennsylvania State University)
- LEMCO (Light Equipment Maintenance Company)
- LEMOSS (Long-Endurance MObile Submarine Simulator)
- LEMP (Limited Electro Magnetic Pulse)
- LEMS (Lambert–Eaton myasthenic syndrome)
- LEN (Large Extension Node)