Opa or OPA may refer to:

Arts and media

Fictional characters and entities

* Olivia Pope & Associates, a fictional crisis management firm in ''Scandal'' (TV series) * Outer Planets Alliance, a fictional organization in James S.A. Corey's ''

Leviathan Wakes ''Leviathan Wakes'' is a science fiction novel by James S. A. Corey, the pen name of American writers Daniel Abraham and Ty Franck. It is the first book in the ''Expanse'' series, followed by ''Caliban's War'' (2012), ''Abaddon's Gate'' (2013) ...

'' books and the TV series ''

The Expanse Expanse or The Expanse may refer to: Media and entertainment ''The Expanse'' franchise * ''The Expanse'' (novel series), a series of science fiction novels by James S. A. Corey * ''The Expanse'' (TV series), a television adaptation of the ...

'' based upon them * Opa-Opa, a character in the '' Fantasy Zone'' video game series

Film

* ''Opa!'', a film starring Matthew Modine, Kosta Zorbas and Agni Scott

Music

* Opa (Swedish band), a pop/folk band formed in 2012 *

Opa (Uruguayan band) Opa were an American jazz fusion band made up of Uruguayan members. They started in the 1970s, and released two albums in the US: Goldenwings ( Milestone Records M-9069, 1976) and Magic Time ( Milestone Records M-9078, 1977). Both were produ ...

, a 1969-1977 US-based jazz fusion group * "Opa" (song), by Giorgos Alkaios, representing Greece at Eurovision 2010 * "

Opa Opa "Opa Opa" is a song by Greek singer Notis Sfakianakis, released as a single from his second album ''Ise Ena Pistoli'' in 1992. Opa Opa is a laïko dance song and was written and produced by singer Giorgos Alkaios in 1999. The song has been cov ...

", a 1992 song by Notis Sfakianakis; covered by Antique (1999) and Despina Vandi (2004) * ''Opa Opa'' (album), or ''Mera Me Ti Mera'', by Antique, 1999

Laws and international agreements

Obscene Publications Act 1959 The Obscene Publications Act 1959 (c. 66) is an Act of Parliament of the United Kingdom Parliament that significantly reformed the law related to obscenity in England and Wales. Prior to the passage of the Act, the law on publishing obscene mater ...

, an Act of Parliament in the United Kingdom * Oil Pollution Act of 1990, a United States law * Ouagadougou Peace Agreement, that put an end to the Ivorian Civil War *

Outward Processing Arrangement The Outward Processing Arrangement (OPA) concerns the textile industry in Hong Kong and the People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's most populous cou ...

, a trade agreement between Hong Kong and mainland China

Organizations

Government agencies

Office of the Pardon Attorney The Office of the Pardon Attorney assists the president of the United States in his exercise of executive clemency as authorized by Article II, Section 2, of the US Constitution. It is part of the United States Department of Justice and is in co ...

, an agency of the United States Department of Justice * Office of Population Affairs, a United States agency providing advice on population issues * Office of Price Administration, a United States government office set up to stabilize prices and coordinate rationing after the outbreak of World War II *

Oil and Pipelines Agency The Oil and Pipelines Agency (OPA) is a statutory corporation of the Ministry of Defence (MoD) in the United Kingdom. Its current role is to operate six coastal Oil Fuel Depots on behalf of the MoD. The OPA was also previously responsible for th ...

, a United Kingdom agency *

Ontario Power Authority The Ontario Power Authority (OPA) was an independent, non-profit corporation established through the Electricity Restructuring Act, 2004 (Bill 100). Licensed by the Ontario Energy Board, it reported to the Ontario legislature through the Ministry ...

, a government agency in Canada

Other organizations

FC OPA FC OPA ( FC Oulun Pallo) is a football club from Oulu, Finland. In 2009 it plays in the third highest tier in the C-Group of Kakkonen. The club was founded in 2005. OPA started from Vitonen Vitonen or V divisioona is the sixth level in the F ...

, an association football club from Oulu, Finland * Postnominal letters used by the Anglican Order of Preachers (''Ordo Praedicatorum Anglicanus'') * Online Privacy Alliance, a coalition of Internet companies * OPA co. ltd. (Oriental Park Avenue), a Japanese clothing retail chain and subsidiary of Daiei *

Ordre des Palmes Academiques A suite, in Western classical music and jazz, is an ordered set of instrumental or orchestral/concert band pieces. It originated in the late 14th century as a pairing of dance tunes and grew in scope to comprise up to five dances, sometimes with ...

, an Order of Chivalry of France for academics and cultural and educational figures *

Oregon Pioneer Association The Oregon Pioneer Association (originally known as the Oregon Pioneer Society), first established in October 1867, was a family history society, fraternal and lineage society and historical organization for early American settlers of the Oregon Te ...

, a fraternal-lineage society first established as the Oregon Pioneer Society in 1867 * Oregon Potters Association, a not-for-profit group of clay artists

People

* Opa Muchinguri, a Zimbabwean politician * Opa Nguette, a French footballer * Opa, nickname of

Dorus Rijkers Theodorus "Dorus" Rijkers (27 January 1847 – 19 April 1928) was a famous Dutch lifeboat captain and folk hero, most famous for his sea rescues of 487 shipwrecked victims over a total of 38 rescue operations, and at least 25 before joining the l ...

, Dutch lifeboat captain who rescued over 500 people in his career

Science and technology

Chemistry

* OPA mixture, a mixture used in chemical weapons * Ortho-phthalaldehyde, a dialdehyde used in the synthesis of heterocyclic compounds and a reagent in the analysis of amino acids

Physics

* Open Public Alert, a public alert of a gravitational wave event *

Optical parametric amplifier An optical parametric amplifier, abbreviated OPA, is a laser light source that emits light of variable wavelengths by an optical parametric amplification process. It is essentially the same as an optical parametric oscillator, but without the optic ...

, a laser light source that emits light of variable wavelengths

Computing

Opa (programming language) Opa is an open-source programming language for developing scalable web applications. It can be used for both client-side and server-side scripting, where complete programs are written in Opa and subsequently compiled to Node.js on the server and ...

, a web development platform * Intel

Omni-Path Omni-Path Architecture (OPA) was a high-performance communication architecture owned by Intel. It aims for low communication latency, low power consumption and a high throughput. Intel planned to develop technology based on this architecture for e ...

architecture, a design for high performance computing * Open Platform Architecture, a software interface from Ericsson Mobile Platforms for use internally in cellular phones * Open Policy Agent, an open source policy engine cloud infrastructure from the

Cloud Native Computing Foundation The Cloud Native Computing Foundation (CNCF) is a Linux Foundation project that was founded in 2015 to help advance container technology and align the tech industry around its evolution. It was announced alongside Kubernetes 1.0, an open sourc ...

Oracle Policy Automation Oracle Intelligent Advisor (OIA) formerly known as Oracle Policy Automation (OPA) is a suite of decision automation software products for modeling and deploying business rules within the enterprise. Oracle Corporation acquired OPA in December 20 ...

, an enterprise applications suite

Medicine

* Oligo Pool Assay, a SNP genotyping platform from Illumina *

Oropharyngeal airway An oropharyngeal airway (also known as an oral airway, OPA or Guedel pattern airway) is a medical device called an ''airway adjunct'' used in airway management to maintain or open a patient's airway. It does this by preventing the tongue from cove ...

, a device used to keep the upper respiratory airway open * Out-patient appointments *

Ovine pulmonary adenocarcinoma Ovine pulmonary adenocarcinoma (OPA), also known as ovine pulmonary adenomatosis, or jaagsiekte, is a chronic and contagious disease of the lungs of sheep and goats. OPA is caused by a retrovirus called jaagsiekte sheep retrovirus (JSRV). Signs an ...

, a disease of the lungs in sheep and goats, also known as Jaagsiekte

Other uses

Ambae Island Ambae Island, also known as Aoba, Omba, Oba, or Opa and formerly Lepers’ Island, is an island in the South Pacific island nation of Vanuatu, located near , approximately north-northwest of Vanuatu's capital city, Port Vila. History Firs ...

, Vanuatu (also known as Opa) *

Opa! (Greek expression) ''Opa'' ( el, ώπα) is a common North African and East Mediterranean emotional expression. It is frequently used during celebrations such as weddings or traditional dancing. In Greek culture, the expression sometimes accompanies the act of ...

, a Greek interjection used in surprise or celebration * Opa (roller coaster), a closed roller coaster in Wisconsin *

Toyota Opa The is a compact car produced by Toyota. Its name derives from the exclamation for surprise in Portuguese. It was introduced at the October 1999 Tokyo Motor Show as a prototype car, and was put into production in January 2000. It was the resu ...

, a car * Opa Station, a North Korean railway station * OPA grade tea