NSB

NSB may refer to:

Education

• Nature Structural & Molecular Biology, an academic journal
• National Science Bowl, a middle and high school academic competition
• National Spelling Bee, the Scripps National Spelling Bee, a competition in the United States
• Northampton School for Boys, a British Secondary School
• North Sydney Boys High School, an Australian high school

Politics and government

• National Science Board, the governing body of the National Science Foundation.
• National Seamen Board of the Philippines
• FBI National Security Branch, the United States Federal Bureau of Investigation's anti-terrorism branch.
• National Security Bureau, the intelligence agency of Republic of China
• National Socialist Bloc, a historical political movement in Sweden
• Nationaal-Socialistische Beweging or National Socialist Movement in the Netherlands, a fascist political movement in the Netherlands (1931–1945)
• Naval Submarine Base (United States):
  • Naval Submarine Base New London
  • Naval Submarine Base Kings Bay

Other

• National Savings Bank, a bank in Sri Lanka.
• New Smyrna Beach, Florida, a city in the United States.
• The Nihilist Spasm Band, Canadian free improvisation musical collective.
• Nippon Shortwave Broadcasting (now Radio Nikkei), a domestic commercial shortwave radio station in Japan.
• Norwegian State Railways (Norges Statsbaner), a current train operating company
• Norwegian State Railways (1883–1996), a former government agency
• Nu skool breaks
• Natural Snow Buildings, a French experimental music duo