What does DEO stand for?

California Sun, Westfield, MA - Manufacturer code for watercraft hull identification number (USCG)

Data Entry Operator (SAUS)

Deck Edge Outlet - Navy

Demon - NCIC firearms make code (NCIC)

Deobstruent - Removing Obstructions - Pharmacy (ROG)

Department of Executive Officer

Diageo Plc ADS - NYSE symbol - Formerly, Grand Metropolitan ADS (SPSG)

Diesel Engine Oil

Digital End Office - Telecommunications

Directed Energy Office (ACAE)

Director of Emergency Operations (COE)

District Engineering Office (SAUS)

District Engineer Officer - Army

District Engineers Office (SAUS)

Divisional Education Officer - British

Divisional Entertainments Officer - British

Divisional Executive Officer - British

Doped Erbium Oxide

Duke of Edinburgh's Own - Military unit - British

De Deo - Philo (BJA)