OSL may refer to:

Science and technology

  • Open Shading Language, a shading language
  • Open Software License, an open-source software license
  • Optically stimulated luminescence, a method of measuring doses from ionizing radiation, which is often used in mineral dating
  • Open syllable lengthening, a process by which short vowels become long in open syllables

Groups, organizations, companies

  • OSL Group, Hong Kong-based brokerage and digital-assets manager
  • Ontario Soccer League, a semi-pro soccer league in Ontario, Canada
  • Orchestra of St. Luke's, chamber orchestra in Manhattan, New York City
  • Order of Saint Luke, a Methodist religious order
  • Oregon Short Line Railroad, a former railroad in the U.S. states of Wyoming, Idaho, Utah, Montana and Oregon
  • Oud-Strijders Legioen, a Dutch right-wing organization (1952–2010)
  • Sosoliso Airlines, ICAO airline designator

Events

  • Ongamenet Starleague, a tournament for professional StarCraft players in South Korea
  • Outside Lands, a music and arts festival that takes place annually in San Francsico's Golden Gate Park

Other uses

  • Oslo Airport, Gardermoen, IATA airport code
  • Osl, a Hungarian gens originating in the 12th century

See also

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  • OSI (disambiguation)