OCB may refer to:

Arts, entertainment, and media

• O.c.b. (album), a 2009 album by O.S.T.R.
• "O.C.B.", a song by Joey Badass from his 2015 album B4.Da.$$
• OCB, a song by Billy Ze Kick et les Gamins en Folie on their 1993 self-titled album
• OCB, a song by Malaa
• OCB, abbreviation of The Oxford Companion to Beer
• Orange Catholic Bible, a fictional book from the Dune universe created by Frank Herbert

Brands and enterprises

• Odet-Cascadec-Bolloré, a brand of cigarette rolling papers manufactured by Republic Tobacco
• Old Country Buffet, American restaurant chain
• Orient Commercial Joint Stock Bank (OCB), a large bank located in Vietnam

Sports

• Óquei Clube de Barcelos, a rink hockey team from Barcelos, Portugal
• Orlando City B, a soccer team in Florida, United States

Other uses

• OCB mode, a mode of operation for cryptographic block ciphers
• Oil circuit breaker, a form of circuit breaker using oil as an insulating medium
• Oligoclonal bands, bands of immunoglobulins that are seen in a patient's serum or CSF
• Operations Coordinating Board (1953–1961), a committee of the United States Executive
• Ordinary course of business, a term in law covering the usual transactions, customs and practices of a certain business and of a certain firm
• Organizational citizenship behavior, a special type of work behavior

This disambiguation page lists articles associated with the title OCB.
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