SBN can mean:

• Naval Aircraft Factory SBN, a scout/torpedo bomber form the mid 1930s
• Satellite Broadcast Network
• SBN - The IATA airport code for the South Bend Regional Airport.
• SBN Television, a television channel in Mongolia.
• SimBroadcasting Network (SBN), a fictional television network channel featured in The Sims 2 PC game.
• Social Business Network, a business-oriented social networking site powered by PC Mall, Inc..
• Society for Behavioral Neuroendocrinology.
• Sonlife Broadcasting Network, a network of the Jimmy Swaggart Ministries
• Southern Broadcasting Network, in the Philippines.
• Standard Beatbox Notation
• Standard Book Number or Standard Book Numbering, which developed into the ISBN system.
• State Bar Number, identification number for lawyers
• Strontium-Barium Niobate, a crystal displaying a strong photorefractive effect.
• Student Broadcast Network.
• subtract and branch if negative - a single opcode instruction sufficient to create a general-purpose computer (as a thought experiment); a programming language has been made to demonstrate this idea.

Die Abkürzung SBN steht für:

• Naval Aircraft Factory SBN, ein Lizenzbau des zweisitzigen Aufklärers/Bombers der Brewster Aeronautical Corporation Brewster SBA,
• Schachtbau Nordhausen, ein deutsches Technologieunternehmen mit Sitz in thüringischen Nordhausen

三陸ブロードネット株式会社（さんりくブロードネット、SBN）は、岩手県釜石市に本社を置く第三セクターのケーブルテレビ局である。

International Standard Book Number, mais conhecido pela sua sigla ISBN, é o Número Padrão Internacional de Livro, um sistema identificador único para livros e publicações não periódicas. Foi criado no Reino Unido em 1967 pela livraria W H Smith, sendo chamado inicialmente de "Standard Book Numbering" ou "SBN". Desde então, passou a ser amplamente empregado tanto pelos comerciantes de livros quanto pelas bibliotecas, até que, em 1972, foi adaptado internacionalmente como norma padrão ISO 2108 pela International Standard Organization.