SNI may refer to: <!--in alphabetic order-->

Science and technology

  • Substitution nucleophilic internal, a chemistry reaction mechanism
  • Swedish Standard Industrial Classification, a Swedish economic classification system
  • Server Name Indication, an extension to the TLS computer networking protocol

Companies

  • Scripps Networks Interactive, a media company
  • Showtime Networks Inc., an American cable network company
  • Siemens Nixdorf Informationssysteme, a former computer hardware company
  • Société Nationale d'Investissement, a Moroccan conglomerate
  • Sports Network Incorporated, a former American media company

Organizations

  • National Information Service (Brazil), or , the former name of the Brazilian Intelligence Agency
  • Seicho-no-Ie, a Japanese new religion
  • Shelter Now International, a Christian foreign aid organization, based in Germany and historically focused on Pakistan and Afghanistan
  • Sistema Nacional de Investigadores, a Mexican government agency
  • Soviet Naval Infantry
  • Swiss Nanoscience Institute

Other uses

  • Standar Nasional Indonesia (Indonesian National Standard), formulated by the National Standardization Agency