NB

The letters NB or Nb may refer to:

• A Clan where NB stands for n00b haven gotten the name from beating a supreme clan whom called them n00bs
• (as N.B.) an abbreviation for nota bene, a Latin expression meaning "note well"
• An abbreviation for 'Not Bad', used in chat and slang when describing something adequate
• The symbol for the chemical element Niobium
• The ISO 639 abbreviation for the Norwegian language
• The Canada Post Corporation provincial abbreviation for New Brunswick
• The International Air Transport Association code for Sterling Airlines
• New Balance, a shoe manufacturer
• One of several towns named New Baltimore
• Narrowboat, a particular size of water vessel found on English canals.
• One of several areas named New Britain
• Nigerian Breweries, a beverage company in Nigeria manufacturing alcoholic and non-alcoholic drinks including: Heineken, Star, Gulder, Maltina, Amstel Malta, Legend, and Fayrouz
• North Britain, a historical term for Scotland
• Noise Banker, in telecommunications, a feature that reduces noise heard on a frequency

In music:

• N.B. (album), Natasha Bedingfield's second album.

In software:

• NetBeans, an Integrated development environment by Sun Microsystems