AOD
- Acousto-optic deflector
- Act of Depression
- Adrenalin O.D.
- Aerosol optical depth
- Alliance of Democracies
- Always on display
- Ancient Order of Druids
- Angels of Death (video game)
- Animation On Display
- Argon oxygen decarburization
- Army of Darkness
- Arsenal of Democracy (video game)
- Art of Dying (band)
- Assembly of Dust
- Astro On Demand
- Aubrey O'Day
- Audio on demand
- Diabetes mellitus type 2
- Ford AOD transmission
- HD DVD
- Ordnance Datum
- Roman Catholic Archdiocese of Detroit
- Royal Army Ordnance Corps
- Solution architecture