Other
- Neuroblastoma, the most common solid extracranial tumor in children and infants
- New Balance, a shoe company
- Nigerian Breweries, a beverage company based in Nigeria
- Narrowboat, a particular size of water vessel found on English canals
- The ISO 639-1 abbreviation for the Bokmål written form of the Norwegian language
- 牛B (niúbī), a common word in Mandarin Chinese profanity
- nb, a common abbreviation for the Romanian 'Good night'
Read more about this topic: NB