CNB may refer to: Businesses and organizations City National Bank (disambiguation) Central Narcotics Bureau, Singapore's primary drug enforcement agency Cherokee Nation Businesses, a conglomerate holding company fully owned by the Cherokee Nation City News Bureau of Chicago, a Chicago-area cooperative news agency National Ballet of Portugal, natively Companhia Nacional de Bailado Spanish National Center for Biotechnology, natively Centro Nacional de Biotecnología Czech National Bank (ČNB), the central bank of the Czech Republic In Black and White (CnB), a party coalition of Montenegro Other uses Changi Naval Base, Singapore Chinbon, a dialect of the Shö language, ISO 639-3 code cnb Conjunto Nacional (Brasília), a shopping mall in Brazil Coonamble Airport (IATA: CNB), New South Wales, Australia Core needle biopsy, a type of breast biopsy Cosmic neutrino background, a type of particle radiation originating from the big bang Kanpur Central railway station (Indian Railways station code CNB), formerly known as Cawnpore North Barracks station