An LED is a light-emitting diode. (light source)
LED, or Led may also refer to:
- LED (editor), a programmers' editor by Norsk Data
- Led (river), a river in northern Russia
- L.E.D., former stage name of Skydiver Elley Duhé
- Large extra dimensions, a theory in physics
- Ledbury railway station's National Rail station code
- Local economic development, an approach to development, particularly in the Third World
- Pulkovo Airport's IATA airport code in St. Petersburg (former Leningrad), Russia
- Leading edge devices on aircraft
- Forbes Magazine article about the war in the Middle East