CSN

CSN may refer to:

Companies

 * CSN Stores, former name of Wayfair, American e-commerce company
 * CSN International (Christian Satellite Network), religious radio broadcaster based on radio station KAWZ in Twin Falls, Idaho
 * Centrala Studiestödsnämnden, Swedish national student loans and grants authority
 * Columbus Sports Network (WCSN-LD), low-power television station in Columbus, Ohio
 * Comcast SportsNet, former name of NBC Sports Regional Networks
 * Comic Shop News, free weekly newspaper distributed throughout comic book specialty stores
 * Companhia Siderúrgica Nacional, Brazilian steel maker

Music

 * Crosby, Stills & Nash, an American folk rock supergroup
 * CSN (album), 1977
 * CSN (box set), 1991

Transport

 * CSN, National Rail station code for Chessington North railway station, England
 * Changsha South railway station, China Railway pinyin code CSN
 * China Southern Airlines, China

Other uses

 * Canaan Smith-Njigba (born 1999), American baseball player
 * Cell Signaling Networks
 * COP9 signalosome (CSN), a protein complex
 * CSN2
 * COP9 signalosome complex subunit 3 (CSN3)
 * Coláiste an Spioraid Naoimh, a secondary school in Cork City, Ireland
 * College of Southern Nevada, a community college located in Clark County
 * Comunidad Sudamericana de Naciones, Union of South American Nations
 * CSN.1, Concrete Syntax Notation, a telecommunications and computer networking standard
 * Confederate States Navy
 * Confédération des syndicats nationaux
 * Carlton Sports Network, a sports channel in Sri Lanka
 * Czech technical standard (ČSN)