SS is most commonly an abbreviation for German ('Protection Squadron'), a paramilitary organisation in Nazi Germany.

SS, Ss, or similar may also refer to:

Places

• American Samoa, former two-letter NATO code

• Guangdong Experimental High School (Sheng Shi or Saang Sat), China

• Province of Sassari, Italy (vehicle plate code)

• South Sudan (ISO 3166-1 code SS)

• SS postcode area, UK, around Southend-on-Sea

• San Sebastián, Spanish city

Arts, entertainment, and media

• SS (band), an early Japanese hardcore punk band

• SS (manga), a Japanese comic 2000-2003

• SS Entertainment, a Korean entertainment company

• S.S., for Sosthenes Smith, H. G. Wells' pseudonym for the story A Vision of the Past

• SS, the production code for the 1968 Doctor Who serial The Wheel in Space

• SS, song by Ken Carson

Language

• Ss (digraph) used in Pinyin

• ß or ss, a German-language ligature

• switch-reference in linguistics

• Scilicet, used as a section sign

• (in the strict sense) in Latin

• Swazi language (ISO 639-1 code "ss")

Science and technology

• Stainless steel, sometimes marked SS

• Suspended solids and settleable solids, in water

Biology and medicine

• (+)-sabinene synthase, an enzyme

• Serotonin syndrome, due to some serotonergic medications

• Sjögren's syndrome, an autoimmune disease

• Sweet's syndrome or acute febrile neutrophilic dermatosis

Computing

• .ss, top-level domain country code for South Sudan

• Screenshot, digital image showing contents of a computer display

• Slave select line on a computer data bus

• SS register in x86 processor

• Super speed USB, or USB 3.0

• ss, in the Unix iproute2 collection

• Sega Saturn; the abbreviation predominantly used in Japan

Meteorology

• Subtropical storm, a category of subtropical cyclone.

Sports

• Sareen Sports Industries, India

• Shortstop, a fielding position in baseball and softball

• Special stage (rallying)

• Strong safety, a position in American and Canadian football

• Sunday Silence, an American racehorse

Transportation

• Corsair International (IATA airline code SS)

• Maatschappij tot Exploitatie van Staatsspoorwegen, a Dutch railroad

• Sand Springs Railway in Oklahoma, US, reporting mark

• Staatsspoorwegen, a Dutch East Indies railroad

• Stockholms Spårvägar (1915), a historic Swedish tram operator

• Stockholms Spårvägar, a Swedish tram operator

Ships

• Screw steamer, a ship prefix for steamboats and steamships

• Submarine, by US Navy hull classification

Vehicles

• Chevrolet SS, a sports sedan

• Chevrolet SS (concept car), a concept car

• SS Cars Ltd, Jaguar from 1945

• SS class blimp, for anti-submarine warfare

• Super Sport (Chevrolet), performance option

• SS (New York City Subway service), a former designation for the shuttles of the New York City Subway

• Eagle SS, a kit car

Other uses

• Collar of Esses, a form of livery collar formerly known as a "Collar of SS"

• Safety stock, hedge against stockouts

• Social security

• Sea Scout

• Sanctioned Suicide, an internet forum for suicide discussion and encouragement

• Society of the Priests of Saint Sulpice, post-nominal

• United States Secret Service (founded in 1865)

• Waffen-SS, a combat unit (1933–1945) related to the Schutzstaffel

• Shiv Sena, a political party in India

• Saints

• S.S. Kresge Corporation, now known as Kmart, the first Big Box Store.

See also

• "Double S", a 1978 song by Bill Anderson and Buddy Killen

• S/S (disambiguation)

• SS1 (disambiguation)

• SSS (disambiguation)