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OSS or Oss may refer to:

Places

  • Oss, a city and municipality in the Netherlands
  • Osh Airport, IATA code OSS

People with the name

  • Oss (surname), a surname

Arts and entertainment

  • O.S.S. (film), a 1946 World War II spy film about Office of Strategic Services agents
  • Oss (film), a 1976 Norwegian post-apocalyptic disaster film
  • O.S.S. (TV series), a British spy series which aired in 1957 in the UK and the US
  • Open Source Shakespeare, a non-commercial website with texts and statistics on Shakespeare's plays
  • Old Syriac Sinaiticus, a Bible manuscript
  • Organization of Super Spies, a fictional organization in the Spy Kids franchise

Education

  • ÖSS (Öğrenci Seçme Sınavı), a former university entrance exam in Turkey
  • Options Secondary School, Chula Vista, California
  • Otto Stern School for Integrated Doctoral Education, Frankfurt am Main, Germany
  • Outram Secondary School, Singapore
  • Out-of-school suspension, a form of school discipline considered more severe than in-school suspension

Organizations

  • Observatoire du Sahara et du Sahel, dedicated to fighting desertification and drought; based in Tunis, Tunisia
  • Office for Science and Society, Science Education from Montreal's McGill University
  • Office of Strategic Services, World War II forerunner of the Central Intelligence Agency
  • Office of the Supervising Scientist, an Australian Government body under the Supervising Scientist
  • One-stop shop, a government office where multiple services are offered in a centralized location rather than in different places
  • Open Spaces Society, a UK registered charity championing public paths and open spaces
  • Operations Support Squadron, a United States Air Force support squadron
  • Optimized Systems Software, a former software company

Science and technology

  • Ohio Sky Survey
  • Optical SteadyShot, a lens-based image stabilization system by Sony
  • Optimal Stereo Sound, another name for the Jecklin Disk recording technique
  • Oriented spindle stop, a type of spindle motion used within some G-code cycles
  • Ovary-sparing spay
  • Overspeed Sensor System, part of the Train Protection & Warning System for railroad trains

Computer software and hardware

  • Operations support system, computers used by telecommunications service providers to administer and maintain network systems
  • Open Sound System, a standard interface for making and capturing sound in Unix operating systems
  • OpenSearchServer, search engine software
  • Open-source software, software with its source code made freely available
  • GPT-OSS (stylized as gpt-oss), a set of open-weight reasoning models released by OpenAI on August 5, 2025

Other uses

  • Operation Southern Spear, a US military campaign
  • Order of St. Sava, a Serbian decoration
  • Ossetic language ISO 639 code oss
  • Oss (greeting), a casual Japanese salutation
  • Óss (rune) or Ansuz, a character of the Elder Futhark

See also

  • Import OSS (IOSS)
  • (MOSS)
  • AAS (disambiguation)
  • Hoz (disambiguation)
  • OS (disambiguation)