Operation B may refer to
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Battle of Borneo (1941–1942)
The Battle of Borneo was a successful campaign by Japanese Imperial forces for control of Borneo island and concentrated mainly on the subjugation of the Raj of Sarawak, Brunei, North Borneo, and the western part of Kalimantan that was pa ...
- Military campaign by Japanese Imperial forces for control of Borneo island
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Operation B (1945–1947) - Czechoslovak military operation aimed against
Ukrainian Insurgent Army.
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Operation B (film) - 1951 film inspired by the operation.
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Operation B (1952–1953) - centrally organized forced resettlement of people inconvenient to Czechoslovak communists from large cities to the countryside, often to ruins in the borderlands, unfit for housing.
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Operation B (1953) - plan for the abolition of all Catholic women's orders and congregations, the mandatory dissolution of religious communities and the transition of nuns to civilian employment prepared by the communist regime in Czechoslovakia in 1953.
{{Disambiguation