Diode is a device that is a two-terminal electronic component that conducts electric current in only one direction.

Diode or Diodes may also refer to:

• Data diode, a type of unidirectional computer network
• Diodes Incorporated, a global manufacturer and supplier of application specific standard products within the broad discrete, logic and analog semiconductor markets
• The Diodes, a Canadian punk/new wave band

See also

• DIOD, ICAO code for Odienné Airport in Côte d'Ivoire