OMB

OMB is a three-letter abbreviation which may stand for: Office of Management and Budget, a group that oversees the activities of federal agencies in the United States
Owner Managed Business, small and medium enterprises
Olympiade Mathématique Belge, the Belgian Mathematical Olympiad, a mathematical competition
Ontario Municipal Board, a tribunal involved in municipal and planning matters of Ontario, Canada
Our Miss Brooks, an American situation comedy, starred Eve Arden
Marine Modeling and Analysis Branch, formerly Ocean Modeling Branch, a US weather & environment agency
Oregon Marching Band, the marching band for the University of Oregon in Eugene, Oregon, United States
OpenMicroBlogging, the standard that allows for micro-blogging services to interoperate
Oscar Marine Brandi, the Madrid based Design studio run by Oscar Marine

Translation

The word "OMB" occurs as such in the following languages: English, French, Italian, Dutch, Chinese.