SNS may refer to: Science and technology Biology and medicine Somatic nervous system or voluntary nervous system Supplemental nursing system, to provide additional milk to a nursing infant Sympathetic nervous system, part of the autonomic nervous system Computing Social networking service, social website Amazon Simple Notification Service, for mobile devices Other uses in science and technology Spallation Neutron Source, Oak Ridge, Tennessee, US US Strategic National Stockpile of medical supplies Tin(II) sulfide, SnS Organizations Businesses SNS Bank, Netherlands Street News Service, for street newspapers Political parties Serbian Progressive Party (Srpska napredna stranka) Serb People's Party (Srpska narodna stranka) Slovak National Party (Slovenská národná strana) (1990–present) Slovak National Party (historical) (1871–1938) Slovenian National Party (Slovenska nacionalna stranka) Other organizations Scuola Normale Superiore, an Italian higher education institution Serviço Nacional de Saúde, the Portuguese national health service Sistema Nacional de Salud, the national health system of Spain Société de natation de Strasbourg, French water polo team Special Night Squads, a former Jewish-British military unit Stoke Newington School, London, UK Other uses Salinas Municipal Airport, Monterey County, California, US, IATA code SNS, the product code used by Nintendo for Super NES hardware (e.g. SNS-001) SNS, abbreviation for "Salomon Nordic System", a binding standard for cross country skis