OBU

Obu or OBU may refer to:

Japan-related topics

 * Obu Toramasa (1504–1565), Japanese samurai
 * Ōbu, a city in the Aichi prefecture
 * Ōbu Station, a railway station in the city of Ōbu

Educational institutions

 * Oxford Brookes University, Oxford, England
 * United States:
 * Oklahoma Baptist University
 * Ouachita Baptist University

Finance

 * Offshore banking, also known as Offshore Banking Unit

Trade unionism

 * One Big Union (Canada)
 * One Big Union (concept)
 * Operative Builders' Union, early British union federation

Other uses

 * obu, ISO 639-3 code for Obulom language of Nigeria
 * On-Board Unit for implementing Italian toll-highway Telepass
 * Open Bitstream Unit in the AOMedia Video 1 (AV1)