WGN may refer to:

• WGN (AM), a radio station (720 AM) licensed to Chicago, Illinois, United States
• WGN America, a cable television network which uses this initialism within electronic guide listings

• Disc emulator
• Discens
• Discernment
• Discernment of Spirits
• Disc floret
• Disc flower
• Disc Galaxy
• Disc games
• Disc (geometry)
• Disc gun
• Dischack
• Discharge anodising
• Discharge anodizing
• Discharged fuel elements
• Discharge in bankruptcy
• Discharge ionization detector
• Discharge lamp
• Discharge Lamp
• Discharge (military)
• Discharger
• Discharge resolution
• Discharges
• Discharge (sentence)
• Discharge tube
• Discharge tubes