Osa or OSA may refer to:

Places

* Osa Peninsula, a peninsula in Costa Rica * Osa (canton), a canton in the province of Puntarenas in Costa Rica * Osa Conservation Area, an administrative area in Costa Rica *

Osa, India Osa is a village in Allahabad Allahabad (), officially known as Prayagraj, also known as Ilahabad, is a metropolis in the Indian state of Uttar Pradesh.The other five cities were: Agra, Kanpur (Cawnpore), Lucknow, Meerut, and Varanas ...

, a village in Allahabad, India *

Osa, Iran Owsa ( fa, اوسا), also known as Osā and Osās, is a village in Kuhdasht-e Gharbi Rural District, in the Central District of Miandorud County Miandorud County ( fa, شهرستان میان‌دورود) is in Mazandaran province, Iran. ...

, a village in Mazandaran Province, Iran *

Osa, Warmian-Masurian Voivodeship Osa (german: Ossa; 1930-45: Schwanhof) is a village in northern Poland, in the administrative district of Gmina Mikołajki, within Mrągowo County, Warmian-Masurian Voivodeship. It lies approximately north-east of Mikołajki, east of Mrągowo, ...

, 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 Osa (russian: Оса) is the name of several inhabited localities in Russia. Urban localities *Osa, Perm Krai, a town of district significance in Osinsky District of Perm Krai Rural localities *Osa, Irkutsk Oblast, a '' selo'' in Osinsky D ...

, the name of several inhabited localities in Russia *

Osa, Missouri Osa is an unincorporated community in the northeast corner of Barry County, in the U.S. state of Missouri. The community is on Missouri Route JJ A supplemental route is a state secondary road in the U.S. state of Missouri, designated with lett ...

, a community in the United States * Old Scona Academic High School, a school in Edmonton, Canada *

Oakland School for the Arts Oakland School for the Arts (OSA) is a visual and performing arts charter school in Oakland, California, United States. OSA opened in 2002 with a curriculum that integrated college preparatory academics with conservatory-style arts training. As o ...

Military

* Osa-class missile boat * 9K33 Osa (SA-8 Gecko), a Soviet surface-to-air missile launcher *

M79 Osa The M79 Osa ( sr, Оса; "wasp") is a Yugoslav-made portable 90 mm anti-tank weapon made of fibre-reinforced plastics. It resembles the French portable anti-tank launcher 89 mm LRAC F1. It consists of the launcher, a CN-6 sighting pi ...

, a Serbian/Yugoslav rocket launcher * Avia B.122 ''Osa'', a Czech trainer aircraft * Osa (handgun) a Russian non-lethal handgun

Science and technology

* Optical spectrum analyzer * ''Osa'' (plant), a monotypic genus of plant in the family Rubiaceae * OSA methodology

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 obstruction of the upper airway leading to reduced or absent breathing during sleep. These episod ...

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

Computing

Open Scripting Architecture AppleScript is a scripting language created by Apple Inc. that facilitates automated control over scriptable Mac applications. First introduced in System 7, it is currently included in all versions of macOS as part of a package of system automa ...

, 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 computer sex, Internet sex, netsex and, colloquially, cyber or 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 e ...

Open Systems Adapter The Open Systems Adapter (OSA) is a network controller for IBM z/Architecture, ES/9000 and S/390 mainframes. The OSA supports Ethernet, Token Ring and FDDI connectivity. References External links
Networking hardware IBM System/360 mai ...

, an IBM card for mainframes * Open systems architecture, a telecommunication standard * Oversampling

Businesses and organizations

* Oceania Swimming Association *

Ontario Soccer Association The Ontario Soccer Association, founded in 1901, is one of the oldest and largest sport organizations in Canada. The OSA currently has more than 500,000 registered participants and provides development opportunities for players, coaches, refere ...

* Ontario Society of Artists *

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 * Optimization Systems Associates, a defunct American software company * Order of Saint Anne * Order of Saint Augustine (''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 *

Oriental Society of Australia The Australian Society for Asian Humanities is the oldest academic society in Australasia dedicated to the study of Asia and to the promotion of "the knowledge of Asia in Australia by providing a meeting-place where scholars could present their w ...

now the Australian Society for Asian Humanities * OSA Group, a Constructivist architectural association of the 1920s based in the USSR *

Orissa 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 ...

, a non-profit organization that promotes understanding of Oriya culture and history *

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 Intelli ...

(''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 * Office of Special Affairs, a controversial department of the Church of Scientology * Operation Save America *

Oscilloquartz SA Oscilloquartz, a company of ADVA Optical Networking, is a manufacturer of frequency sources, such as GPS& GLONASS receivers or caesium clocks for telecommunications applications and has been producing similar products for about 60 years. It also ...

People

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

, Japanese actress, nicknamed Osa *

Osa Maliki Osa Maliki Wangsadinata (30 December 1907 – 15 September 1969) was an Indonesian politician and teacher. He served as chairman of the Indonesian National Party (PNI) and a deputy speaker of the People's Consultative Assembly (MPR) from ...

(1907–1969), Indonesian politician * Osa Massen (1914–2006), Danish actress * Osa Odighizuwa (born 1998), American football player * Lars Osa (1860–1958), Norwegian artist

Other uses

* Old Stone Age or Paleolithic * Office of Secret Actions, a fictional government department in the video game '' Return to Castle Wolfenstein'' *

Official Secrets Act An Official Secrets Act (OSA) is legislation that provides for the protection of state secrets and official information, mainly related to national security but in unrevised form (based on the UK Official Secrets Act 1911) can include all infor ...

* Online savings account * Open skies agreement *

Osaka International Airport , often referred to as is the primary regional airport for the Kansai region of Japan, including the major cities of Osaka, Kyoto and Kobe. Classified as a first class airport, it is the airport closest to Kyoto, southwest of Kyoto Station. ...

(former IATA code: OSA)