NSB may refer to:
New Smyrna Beach, Florida, a city in the USNippon Shortwave Broadcasting now
Radio Nikkei, a domestic commercial shortwave radio station in Japan.In education:
National Spelling Bee, the Scripps National Spelling Bee, a competition in the US
National Science Bowl, a high school academic competition
Northampton School For Boys, a British Secondary School
North Sydney Boys High School, an Australian high schoolIn politics and government:
National Science Board, a US government advisory group, now named National Science Foundation
Nationaal-Socialistische Beweging, a historical political movement in the Netherlands
National Socialist Bloc, a historical political movement in Sweden
National Security Bureau, the intelligence agency of Republic of China
Norges Statsbaner, a Norwegian passenger railway systemNaval Submarine Base, (US):
Naval Submarine Base New LondonNaval Submarine Base Kings Bay
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