DMO

DMO may refer to:
 * Dilute Magnetic Oxide, a type of functional semiconducting oxide with applications in Spintronics
 * Debt Management Office, an executive agency of the United Kingdom government
 * Defence Materiel Organisation, a former agency of the government of Australia
 * Destination Management Organization, a program of the government of Indonesia; see Tourism in Indonesia
 * Destination marketing organization, an organization that promotes a place in order to increase the number of visitors
 * Digimon Masters Online, a massively multiplayer online role-playing video game
 * Director of Military Operations, a position at the UK War Office
 * DirectX Media Objects, a multimedia software API from Microsoft
 * Domodedovo Airlines, a former airline, headquartered at Domodedovo International Airport in Moscow
 * Kemezung language, a language native to Cameroon with ISO 639-3 code
 * Warhammer 40,000: Dark Millennium Online, a multiplayer role-playing video game