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)