OSI may refer to:

Places

* Osijek Airport (IATA code: OSI), an airport in Croatia *

Ősi Ősi is a village in Veszprém county, Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the ...

, a village in Veszprém county, Hungary * Oši, an archaeological site in Semigallia, Latvia * Osi, a village in Ido-Osi, Ekiti State, Nigeria * Osi, Ekiti LGA.Kwara State, Nigeria

Organizations

Oblates of St. Joseph , abbreviation = OSJ , founded = , founder = Bishop Joseph Marello , founding_location = Asti, Italy , headquarters = Rome, Italy , type = Clerical Religious Congregation , num_member ...

, a Roman Catholic Religious order that uses the postnominal initials O.S.I. * Open Source Initiative, an organization dedicated to promoting open source software * Open Society Institute, a private charitable foundation established by George Soros to promote open societies around the world * Open Society Institute-Baltimore, a locally based foundation that is part of Open Society Foundations * Open Space Institute, an organization that seeks to preserve scenic, natural and historic landscapes *

Ordnance Survey Ireland Ordnance Survey Ireland (OSI; ga, Suirbhéireacht Ordanáis Éireann) is the national mapping agency of Ireland. It was established on 4 March 2002 as a body corporate. It is the successor to the former Ordnance Survey of Ireland. It and the ...

(''Suirbhéireacht Ordanáis Éireann'') * Otto-Suhr-Institut, the political-science institute of the Free University of Berlin

Companies

* OSI Group, an American holding company of meat processors that service the retail and food service industries *

OSI Pharmaceuticals OSI Pharmaceuticals, Inc. was an American pharmaceutical company formerly based on Long Island, New York with facilities in Colorado, New Jersey and the United Kingdom. On Sunday, May 16, 2010 OSI agreed to be acquired by Japan-based, TSE-listed ...

, an American pharmaceutical company * OSI Restaurant Partners, the restaurant and entertainment group that includes Outback Steakhouse *

OSI Systems OSI Systems, Inc. is an American company based in California that develops and markets security and inspection systems such as airport security X-ray machines and metal detectors, medical monitoring and anesthesia systems, and optoelectronic dev ...

, a company that manufactures security scanners and medical equipment based in California * OSIsoft, a privately held company that develops device connectivity software *

Objective Systems Integrators Objective Systems Integrators (OSI) is a multinational computer technology corporation that develops, manufactures, licenses, and supports software products which automate the monitoring, control, delivery, and management of services for multinati ...

, a company that provides monitoring software for communication networks * Open Systems International, an automation software vendor for the electric, petroleum, transportation and water industries * Officine Stampaggi Industriali, a defunct Italian coachbuilder * Ohio Scientific Inc. (also known as Ohio Scientific Instruments), a US microcomputer manufacturer 1975-1981 * '' Officine Stampaggi Industriali'', Italian coachbuilder

Government

Office of Scientific Intelligence Office of Scientific Intelligence (OSI) also known as Scientific Intelligence Division was a department of the Central Intelligence Agency. In 1963, it was incorporated into the Directorate of Science & Technology.http://www.gwu.edu/~nsarchiv/NSAE ...

, former name of a department of the Central Intelligence Agency now called the Directorate of Science and Technology *

Office of Strategic Influence The Office of Strategic Influence, or OSI, was a department created by the United States Department of Defense on October 30, 2001, to support the War on Terrorism through psychological operations in targeted countries, which did not include the U ...

, a former American government agency, part of the Department of Defense and focused on psychological warfare *

Office of Special Investigations (disambiguation) Office of Special Investigations may refer to: * U.S. Air Force Office of Special Investigations * Office of Special Investigations (Government Accountability Office) * Office of Special Investigations (United States Department of Justice) See als ...

, a name shared by several government agencies ** U.S. Air Force Office of Special Investigations **

Office of Special Investigations (Government Accountability Office) The U.S. Government Accountability Office (GAO) is a legislative branch government agency that provides auditing, evaluative, and investigative services for the United States Congress. It is the supreme audit institution of the federal govern ...

** Office of Special Investigations (United States Department of Justice) * Office of Scientific Integrity, now United States Office of Research Integrity * Office of Special Investigation, a secret intelligence unit of Republic of Korea Air Force

Technology

* Open Systems Interconnection, (ISO 7498) 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 ** OSI protocols * Open switching interval, a type of disconnect supervision in telecommunication *

On-Site Inspection The Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) is an international organization that will be established upon the entry into force of the Comprehensive Nuclear-Test-Ban Treaty, a Convention that outlaws nuclear test explosions. It ...

, an advanced measure technique combining several methods, especially used in order to detect nuclear tests

Arts and entertainment

OSI (band) OSI is an American progressive rock band, originally formed by Fates Warning guitarist Jim Matheos in 2002. Chroma Key keyboardist and vocalist Kevin Moore is the only other full-time member of the band. The collaboration may be considered a stu ...

, an American progressive rock supergroup named after the former Office of Strategic Influence government agency ** ''Office of Strategic Influence'' (album), the 2003 debut album by the band OSI * Origin Systems, a former United States computer game developer * Orchestra della Svizzera Italiana, an orchestra in southern Switzerland in the city of Lugano which is in the canton of Ticino

Fiction

a fictional United States government agency in several television programs and movies; *

Office of Secret Intelligence This is a list of main and recurring fictional characters from ''The Venture Bros.'', a comic science fiction television series broadcast on Adult Swim. Overview Team Venture Team Venture comprises the central characters in the show; they for ...

, a fictional United States government secret agency in the animated series ''The Venture Bros.''

People

Osi (ancient tribe) The Osi or Osii were an ancient tribe dwelling beyond the Quadi, in a woody and mountainous country. But their national customs, as well as their language, were those of the Aravisci, who Tacitus called Pannonians. They were, moreover, tributary ...

, an ancient tribe in Europe * Alans (ancient term Osi), an ancient tribe in the Caucasus *

Osi Umenyiora Ositadimma "Osi" Umenyiora (born November 16, 1981) is a former American football defensive end. He played college football for Troy University and was drafted by the New York Giants in the second round of the 2003 NFL Draft. Umenyiora was a ...

(born 1981), former American football player *

Osi Rhys Osmond Osi Rhys Osmond (born Donald Malcolm Osmond; 28 June 1942 – 6 March 2015) was a Welsh painter and an occasional television and radio presenter. Biography Osmond was born in Bristol to Welsh parents from Wattsville, Sirhowy, Caerphilly, where ...

(1942–2015), Welsh painter

Other uses

* Official sector involvement, in sovereign debt restructuring deals, as opposed to

private sector involvement In the context of sovereign debt crisis, private sector involvement (PSI) refers, broadly speaking, to the contributions or efforts of private sector creditors to the crisis resolution process, and, specifically, means that the private sector sh ...

* Options Symbology Initiative, a plan to change the way that exchange-traded options are named in

option symbol An option symbol is a code by which options are identified on an options exchange or a futures exchange. History Before 2010, the ticker (trading) symbols for US options typically looked like this: ''IBMAF''. This consisted of a ''root symbol'' (' ...

* Out-of-Station Interchange, a pedestrian change between two London Underground stations that allows continuity as part of one chargeable journey