NB

NB, Nb, or nb may refer to:

Arts and entertainment

 * N.B. (album), an album by Natasha Bedingfield
 * NB (TV programme), a Scottish arts television programme that aired 1989–1997

Businesses

 * NB Global, a British investment company
 * New Balance, a shoe company
 * Niesenbahn, a funicular railway in Switzerland
 * Nigerian Breweries, a beverage company
 * Sterling Airlines, a defunct Danish airline (IATA designator)
 * National bank (disambiguation) several banks

Language

 * Nota bene, often abbreviated as NB or n.b., a Latin phrase meaning "note well"
 * nb, ISO 639-1 code for Bokmål, the written standard of the Norwegian language
 * 牛屄 (niúbī), a common word in Mandarin Chinese profanity

Places

 * New Brunswick, a province of Canada, (postal abbreviation: NB)
 * Nebraska, US, (former postal abbreviation: NB; changed to NE)
 * New Bern, North Carolina

Science and technology

 * Niobium, symbol Nb, a chemical element
 * NB class, Australian steam locomotives
 * Boeing NB, a 1923 training aircraft
 * Naive Bayes classifier, in statistics
 * Neuroblastoma, a type of cancer
 * Nominal bore or nominal pipe size, a set of standard sizes for pipes
 * Nanobarn (nb), a unit of cross-sectional area
 * Mazda MX-5 (NB), the second generation of the Mazda MX-5
 * NB (programming language), an intermediate-stage language known as "New B" that evolved from the "B" language and then further evolved into the "C" language

Other uses

 * Narrowboat ship prefix
 * National Battlefield, a protected area in the United States
 * No-ball in cricket
 * Non-binary, a term used by people who identify as neither male nor female.
 * NB, an abbreviation for North Britain used in addresses in Scotland in the nineteenth century e.g " 'The Sporran' Fifeshire, NB" (Used in The Importance of being Earnest" by Oscar Wilde.