BSN

BSN may refer to:


 * Bachelor of Science in Nursing, a nursing degree
 * Badan Standardisasi Nasional, an Indonesian standardization agency
 * Bally Sports North, American regional sports network owned and operated by Bally Sports
 * Baloncesto Superior Nacional, basketball league in Puerto Rico
 * Bank Simpanan Nasional, Malaysia
 * Biotechnology Society of Nepal
 * Blockchain-based Service Network, China
 * Blue Square North, English football league
 * Body sensor network
 * Boussois-Souchon-Neuvesel, French company, renamed Groupe Danone in 1994
 * The British School in the Netherlands, The Hague
 * Broadcasting System of Niigata, Japan
 * Burgerservicenummer, the national identification number in the Netherlands