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)