OSI is primarily used as an abbreviation and has many meanings:

Contents 1 General 2 Government 3 Technology 4 Entertainment 5 Fiction 6 People

[edit] General

• OSI Pharmaceuticals,an American pharmaceutical company
• OSI Restaurant Partners, the restaurant and entertainment group that includes Outback Steakhouse
• OSI Systems a company that manufactures security scanners and medical equipment based in California
• Objective Systems Integrators a company providing Operational Support Systems
• Olomouc Summer Institute, an educational program for high-school students
• Ontario Swine Improvement, a pig breeding company based in Ontario, Canada
• Open Space Institute, an organization that seeks to preserve scenic, natural and historic landscapes
• Open Society Institute, a private charitable foundation established by George Soros to promote open societies around the world
• Ordnance Survey Ireland (Suirbhéireacht Ordanáis Éireann)
• Otto-Suhr-Institut, the political-science institute of the Free University of Berlin
• Operation Serve International is a non-denominational ministry established in 1983 with a passion to extend the Kingdom of God on earth.
• Options Symbology Initiative, a plan to change the way that exchange-traded options are named.
• Open Systems International, Inc., an automation software vendor for the electric, petroleum, transportation and water industries.

[edit] Government

• Office of Scientific Intelligence, former name of a department of the Central Intelligence Agency now called the Directorate of Science and Technology
• Office of Strategic Influence, a short-lived former American government agency created in 2001, part of the Department of Defense and focused on psychological warfare
• Office of Special Investigations, a name shared by several government agencies
  • Air Force Office of Special Investigations
  • Office of Special Investigations (Government Accountability Office)
  • Office of Special Investigations (United States Department of Justice)
• Office of Scientific Integrity, now United States Office of Research Integrity
• Office of Special Investigation (Republic of Korea), a secret intelligence unit of Republic of Korea Air Force

[edit] Technology

• Open Systems Interconnection, a joint ISO and ITU-T standard for computer networks and communication protocols
  • OSI model, a layered description for communications and computer network protocol design
• Open Source Initiative, an organization dedicated to promoting open source software
• Ohio Scientific Inc., a microcomputer manufacturer from the late 1970s to the early 1980s
• Open Switching Interval, a type of disconnect supervision
• On-Site Inspection is an advanced measure technique combining several methods - especially used in order to detect nuclear tests.

[edit] Entertainment

• OSI (band), an American progressive rock supergroup named after the former Office of Strategic Influence government agency
• Origin Systems, a former United States computer game developer
• Office of Strategic Influence (album), the 2003 debut album by the band OSI

[edit] Fiction

• "OSI", a fictional United States government agency in The Six Million Dollar Man and Bionic Woman television programs
• "Office of Secret Intelligence", a fictional United States government secret agency in the animated series The Venture Bros.

[edit] People

• Osi Umenyiora, defensive end for the New York Giants.

This disambiguation page lists articles associated with the same title. If an internal link led you here, you may wish to change the link to point directly to the intended article.