NSB
- FBI National Security Branch
- National Savings Bank (Sri Lanka)
- National Scenic Byway
- National Science Board
- National Seamen Board
- National Security Bureau (Republic of China)
- National Socialist Bloc
- National Socialist Movement in the Netherlands
- Natural Snow Buildings
- Naval Submarine Base Kings Bay
- Naval Submarine Base New London
- Nevada State Bank
- New Smyrna Beach, Florida
- Newcastle School for Boys
- Newtown Savings Bank
- Nihilist Spasm Band
- Normans Bay railway station
- North Sydney Boys High School
- Northampton School for Boys
- Norwegian State Railways (1883–1996)
- Nu skool breaks
- Radio Nikkei
- Science Bowl
- Scripps National Spelling Bee
- Vy