BSN
BSN is an abbreviation for:
- Badan Standardisasi Nasional or National Standardization Agency of Indonesia, Indonesian Organization for Standardization
- Baloncesto Superior Nacional, basketball league in Puerto Rico
- Bank Simpanan Nasional, state-owned Bank of Malaysia
- Commander of the naval forces of the North, a former field commander of the German Navy, the seat of the commander and the department of the same name was first Cuxhaven and 1962 Sengwarden, since 1972 a district of Wilhelmshaven
- Commander of the security of the North Sea (1937-1945)
- Handicapped Association Lower e.V.
- Body Sensor Network
- BSN Medical, a company stemmed from a joint venture between Beiersdorf and Smith & Nephew
- Disambiguation
- Abbreviation