EOD, EoD, or Eod may refer to:
- Earth Overshoot Day
- Education Opens Doors, in Dallas, Texas
- Electric organ discharge
- End of data, a control character in telecommunications
- End of day, in business
- End of days (disambiguation)
- Esoteric Order of Dagon, a fictional cult in the Cthulhu mythos of H. P. Lovecraft
- Eves of Destruction, a Canadian roller derby team
- Evolution of Dance
- Explosive ordnance disposal