DNO

DNO may refer to:
 * Danish Nurses' Organization, a trade union for nurses in Denmark
 * Director of Naval Ordnance, British Admiralty administration
 * Distribution network operator, companies licensed to distribute electricity in Great Britain
 * Dno (air base), a former air base in Russia located 4 km south of Dno
 * DNO ASA, a Norwegian oil company
 * Drang nach Osten, a term coined in the 19th century to designate German expansion into Slavic lands
 * Dutch National Opera, based in Amsterdam, the Netherlands