Osa or OSA may refer to:

Places

Osa Peninsula The Osa Peninsula () is a peninsula located in southwestern Costa Rica, in the Puntarenas Province, with the Pacific Ocean to the west and the Gulf of Dulce, Golfo Dulce to the east. The peninsula was formed geologically by a Geologic fault, faul ...

, in Costa Rica *

Osa (canton) Osa is a Cantons of Costa Rica, canton in the Puntarenas Province, Puntarenas province of Costa Rica. The head city is in Puerto Cortés District, Puerto Cortés district. History Osa was created on 29 July 1940 by decree 185. In pre-Pre-Columb ...

, in the province of Puntarenas in Costa Rica *

Osa Conservation Area Osa Conservation Area is an administrative area which is managed by SINAC for the purposes of conservation in Costa Rica, on the southern Pacific coast region. It contains two National Parks, and numerous Wildlife refuges and other types of nat ...

, an administrative area in Costa Rica *

Osa, India Osa is a village in Prayagraj district, Uttar Pradesh, India. It falls under the Karchhana tehsil and is part of the Bara Vidhan Sabha constituency. According to the 2011 Census, the village code of Osa is 162063, and its PIN code is 212301. ...

, a village in Allahabad, India * Osa, Iran, a village in Mazandaran Province, Iran * Osa, Warmian-Masurian Voivodeship, north Poland *

Osa, Norway Osa is a small village in the municipality of Ulvik in Vestland county, Norway. The village lies at the end of the Osa Fjord, about northeast of the village of Ulvik. The village sits at the confluence of the two rivers: Austdøla and Norddøla, ...

, a village in Ulvik municipality, Vestland county, Norway * Osa, Russia, the name of several inhabited localities in Russia * Osa, Missouri, a community in the United States *

Old Scona Academic High School Old Scona Academic, often referred to as Old Scona or OSA, is a high school in the Old Strathcona district of Edmonton, Alberta. It is a small academic high school with a population of approximately 340 to 360 students. The school's stated purpose ...

, a school in Edmonton, Canada *

Oakland School for the Arts Oakland School for the Arts (OSA) is a Visual arts, visual and performing arts charter school in Oakland, California, United States. OSA opened in 2002 with a curriculum that integrated college preparatory school, college preparatory academics wi ...

Military

Osa-class missile boat The Project 205 Moskit (''mosquito'') more commonly known by their NATO reporting name Osa, are a class of missile boats developed for the Soviet Navy in the late 1950s. Until 1962 this was classified as a large torpedo boat. The Osa class is p ...

9K33 Osa The 9K33 ''Osa'' (; English: "wasp"; NATO reporting name SA-8 ''Gecko'') is a highly mobile, low-altitude, short-range tactical surface-to-air missile system developed in the Soviet Union in the 1960s and fielded in 1972. Its export version nam ...

(SA-8 Gecko), a Soviet surface-to-air missile launcher * M79 Osa, a Serbian/Yugoslav rocket launcher * Avia B.122 ''Osa'', a Czech trainer aircraft *

Osa (handgun) The PB-4 Osa (, "wasp"), is a family of Russian non-lethal pistols that can be also used as a flare gun, a flashbang gun, or a starting pistol. The system consists of the pistol (2-4 cartridges, laser target pointer, electronic ignition capsule), ...

a Russian non-lethal handgun *

Osa (drone) Osa (Ukrainian language, Ukrainian for "wasp") is an unmanned aerial vehicle (UAV) quadcopter manufactured by First Contact, a Ukrainian company. Osa drones were notably used in Ukraine's Operation Spider's Web during the Russo-Ukrainian War. ...

, Ukrainian uncrewed aerial vehicle (UAV)

Science and technology

Optical spectrum analyzer An optical spectrometer (spectrophotometer, spectrograph or spectroscope) is an instrument used to measure properties of light over a specific portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify mater ...

* ''Osa'' (plant), a monotypic genus of plant in the family Rubiaceae

Medicine

Obstructive sleep apnea Obstructive sleep apnea (OSA) is the most common sleep-related breathing disorder and is characterized by recurrent episodes of complete or partial airway obstruction, obstruction of the respiratory tract#Upper respiratory tract, upper airway lea ...

, a sleep-related breathing disorder wherein episodes of upper airway obstruction lead to reduced breathing that interrupts normal sleep *

Osteosarcoma An osteosarcoma (OS) or osteogenic sarcoma (OGS) is a cancerous tumor in a bone. Specifically, it is an aggressive malignant neoplasm that arises from primitive transformed cells of mesenchyme, mesenchymal origin (and thus a sarcoma) and that exhi ...

, a malignant neoplasm of bone

Computing

Open Scripting Architecture AppleScript is a scripting language created by Apple Inc. that facilitates automated control of Mac applications. First introduced in System 7, it is currently included in macOS in a package of automation tools. The term ''AppleScript'' may re ...

, for AppleScript *

Open Services Access The Open Service Access or OSA is part of the third generation mobile telecommunications network or UMTS. OSA describes how services are designed in a UMTS network. The standards for OSA are being developed as part of the 3rd Generation Partnership ...

, a set of standards for mobile telecommunications *

Online Sexual Activity Cybersex, also called Internet sex, computer sex, netsex, e-sex, cybering, is a virtual sex encounter in which two or more people have long distance sex via electronic video communication (webcams, VR headsets, etc.) and other electronics (such as ...

Open Systems Adapter The Open Systems Adapter (OSA) is a network controller for IBM z/Architecture, ES/9000 and S/390 mainframes. The OSA can be installed in a mainframe I/O cage. The OSA supports Ethernet, Token Ring and FDDI Fiber Distributed Data Interface ...

, an IBM card for mainframes *

Open systems architecture Open systems architecture is a system design approach which aims to produce systems that are inherently interoperable and connectable without recourse to retrofit and redesign. Concept Systems design is a process of defining and engineering the ...

, a telecommunication standard

Businesses and organizations

Oceania Swimming Association Oceania Aquatics, formerly known as Oceania Swimming Association, is the continental governing body recognised by World Aquatics, for the national governing bodies of swimming, open water swimming, diving, water polo, synchronised swimming and mast ...

Ontario Soccer Association Ontario Soccer is a Canadian soccer organization. Established in 1901, Ontario Soccer is one of the oldest sports organizations in Canada. Ontario Soccer is composed of over 350,000 players, as well as coaches, referees, and administrators. Si ...

Ontario Society of Artists The Ontario Society of Artists (OSA) was founded in 1872. It is Canada's oldest continuously operating professional art society. When it was founded at the home of John Arthur Fraser, seven artists were present. Besides Fraser himself, Marmaduke ...

Open Solutions Alliance The Open Solutions Alliance (OSA) is a trade association. The OSA works with ISVs, system integrators, and the broader open source software community to improve interoperability among software products by publishing best practices, promoting tec ...

Optical Society of America Optica, founded as the Optical Society of America (later the Optical Society), is a professional society of individuals and companies with an interest in optics and photonics. It publishes journals, organizes conferences and exhibitions, and ca ...

, now Optica *

Optimization Systems Associates Optimization Systems Associates (OSA) was founded by John Bandler in 1983. OSA produced the first commercial implementation of space mapping optimization to enhance the speed and accuracy of engineering design. OSA’s primary thrust was in compu ...

, a defunct American software company *

Order of Saint Anna The Imperial Order of Saint Anna (; also "Order of Saint Anne" or "Order of Saint Ann") was a Holstein ducal and then Russian imperial order of chivalry. It was established by Karl Friedrich, Duke of Holstein-Gottorp, on 14 February 1735, in hono ...

, a Russian order of chivalry *

Order of Saint Augustine The Order of Saint Augustine (), abbreviated OSA, is a mendicant order, mendicant catholic religious order, religious order of the Catholic Church. It was founded in 1244 by bringing together several eremitical groups in the Tuscany region who ...

(''Ordo Sancti Augustini''), the Roman Catholic Augustinian order *

Oregon Student Association The Oregon Student Association (OSA), a non-profit organization, was established in 1975 to represent, serve and protect the collective interests of students in post-secondary education in the U.S. state of Oregon.Organization of the Secret Army, French far-right nationalist group in Algeria * OSA, a Czech Republic

performance rights organisation A performance rights organisation (PRO), also known as a performing rights society, provides intermediary functions, particularly collection of royalties, between copyright holders and parties who wish to use copyrighted works ''publicly'' in lo ...

* Oriental Society of Australia, now the Australian Society for Asian Humanities *

OSA Group The OSA Group (Organization of Contemporary Architects) was an architectural association in the Soviet Union, which was active from 1925 to 1930 and considered the first group of Constructivist architecture, constructivist architects. It published ...

, a Constructivist architectural association of the 1920s based in the USSR *

The Odisha Society of the Americas The Odisha Society of the Americas, or OSA, is an organization whose stated goals are to promote the culture of the Indian state of Odisha in the United States and Canada, and to facilitate the exchange of information between Odisha and North Amer ...

Intelligence-Security Agency of Bosnia and Herzegovina The Intelligence-Security Agency of BiH, commonly known by its acronym OSA-OBA BiH, is the primary intelligence agency of Bosnia and Herzegovina. It was established by the Bosnian Parliament in March 2004. Mission and function The State Intell ...

(''Obavještajno sigurnosna / bezbjednosna agencija'', or OSA-OBA), an intelligence and security agency of Bosnia and Herzegovina * Office of the Science Advisor, of the

United States Environmental Protection Agency The Environmental Protection Agency (EPA) is an independent agency of the United States government tasked with environmental protection matters. President Richard Nixon proposed the establishment of EPA on July 9, 1970; it began operation on De ...

Office of Special Affairs An office is a space where the employees of an organization perform administrative work in order to support and realize the various goals of the organization. The word "office" may also denote a position within an organization with specific du ...

, a controversial department of the Church of Scientology *

Operation Save America Operation Save America (formerly Operation Rescue National) is a Christian Fundamentalism, fundamentalist Christian Right, Christian conservative organization based in Concord, North Carolina, a suburb of Charlotte, North Carolina, Charlotte, t ...

People

Sumire Haruno (born 15 December 1972) is a Japanese actress from Komae, Tokyo, a former member of Takarazuka Revue, specializing in otokoyaku. She joined the revue in 1991, became the top star of Flower Troupe in 2002 and resigned from the company in 2007. He ...

, Japanese actress, nicknamed Osa * Osa Maliki (1907–1969), Indonesian politician *

Osa Massen Osa Massen (born Aase Madsen Iversen, 13 January 1914 – 2 January 2006) was a Danish actress who became a successful movie actress in Hollywood. She became a naturalized citizen of the United States in 1941. Background and early career Bo ...

(1914–2006), Danish actress * Osa Odighizuwa (born 1998), American football player *

Lars Osa Lars Osa (13 August 1860 – 9 February 1958) was a Norwegian artist. He also worked with church decoration and restoration and was a noted fiddle player. Biography Lars Andersen was born in the village of Ulvik in Ulvik municipality in Hordala ...

(1860–1958), Norwegian artist

Other uses

Old Stone Age The Paleolithic or Palaeolithic ( years ago) ( ), also called the Old Stone Age (), is a period in human prehistory that is distinguished by the original development of stone tools, and which represents almost the entire period of human prehist ...

or Paleolithic * Office of Secret Actions, a fictional government department in the video game ''

Return to Castle Wolfenstein ''Return to Castle Wolfenstein'' is a 2001 first-person shooter, first-person shooter game developed by Gray Matter Studios and published by Activision. It was initially released for Microsoft Windows and subsequently for the PlayStation 2 (as '' ...

'' *

Official Secrets Act An Official Secrets Act (OSA) is legislation that provides for the protection of Classified information, state secrets and official information, mainly related to national security. However, in its unrevised form (based on the UK Official Secret ...

, legislation in several countries *

Online Safety Act 2023 The Online Safety Act 2023 (c. 50) is an act of the Parliament of the United Kingdom to regulate online content. Designed to protect children and adults online, it passed on 26 October 2023 and gives the relevant Secretary of State the power, s ...

, United Kingdom legislation *

Online savings account An online savings account (OSA) is a savings account managed and funded primarily on the Internet. Features OSAs are often characterized by a higher interest rate or lower fees, compared with traditional savings accounts. Many of these high-yie ...

Open skies agreement The freedoms of the air, also called five freedoms of air transport, are a set of commercial aviation rights granting a country's airlines the privilege to enter and land in another country's airspace. They were formulated as a result of disagr ...

Osaka International Airport , often referred to as , is the primary domestic airport for the Kansai region of Japan, including its major cities of Osaka, Kyoto, and Kobe. It is the airport closest to Osaka, being 11 km (7 mi) north of Ōsaka Station, Osaka Stati ...

(former IATA code: OSA)