Opa or OPA may refer to:

Arts and media

Fictional characters and entities

* Olivia Pope & Associates, a fictional crisis management firm in ''Scandal'' * 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'' (2 ...

'' 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 is a 1986 horizontally scrolling shooter video game developed and published by Sega for Arcade video game, arcades. It is the first game in the ''Fantasy Zone'' series. It was later ported to a wide variety of consoles, including the Master S ...

'' video game series

Film

* ''Opa!'', a film starring

Matthew Modine Matthew Avery Modine (born March 22, 1959) is an American actor and filmmaker. He shared the Venice Film Festival‘s Volpi Cup for Best Actor as part of the ensemble cast of Robert Altman film ''Streamers'' (1983). He went on to play lead rol ...

, Kosta Zorbas and Agni Scott

Music

Opa (Swedish band) OPA! is a Malmö-based Swedish 6-member musical band with Swedish and folk / pop / ethnic influences featuring Greek-Swedish singer Michael Sideridis (lead vocals). Other members are Thor Ahlgren, Martin Eriksson, Johan Ohlsson, Andreas Rudenå a ...

, 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 (album), Goldenwings (Milestone Records M-9069, 1976) and :es:Magic Time (album), Magic Time (Milesto ...

, a 1969-1977 US-based jazz fusion group * "Opa" (song), by Giorgos Alkaios, representing Greece at Eurovision 2010 * " Opa Opa", 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 ( 7 & 8 Eliz. 2. c. 66) is an Act of Parliament of the United Kingdom Parliament, which significantly reformed the law related to obscenity in England and Wales. Before the passage of the Act, the law on publis ...

, an Act of Parliament in the United Kingdom *

Oil Pollution Act of 1990 The Oil Pollution Act of 1990 (OPA) was passed by the 101st United States Congress and signed by President George H. W. Bush. It works to avoid oil spills from vessels and facilities by enforcing removal of spilled oil and assigning liability f ...

, 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 The textile industry is primarily concerned with the design, production and distribution of textiles: yarn, cloth and clothing. Industry process Cotton manufacturing ...

, a trade agreement between Hong Kong and mainland China

Organizations

Government agencies

* U.S. Office of Palestinian Affairs, a United States government office in Jerusalem managing Palestinian relations *

Office of the Pardon Attorney The Office of the Pardon Attorney (OPA), part of the United States Department of Justice, assists the president of the United States in his exercise of executive clemency as authorized by Article II, Section 2, of the US Constitution. The office ...

, an agency of the United States Department of Justice *

Office of Population Affairs The Office of Population Affairs (OPA) is part of the Office of Public Health and Science in the United States Department of Health and Human Services (HHS). It is responsible for reproductive health topics, including adolescent pregnancy, family ...

, a United States agency providing advice on population issues *

Office of Price Administration The Office of Price Administration (OPA) was established within the Office for Emergency Management of the United States government by Executive Order 8875 on August 28, 1941. The functions of the OPA were originally to control money ( price con ...

, 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 seventh level in th ...

, an association football club from Oulu, Finland * Postnominal letters used by the

Anglican Order of Preachers The Anglican Order of Preachers is an Anglican religious order sometimes loosely referred to as " Dominicans". The order was founded in the United States during the late 1990s by Episcopal priest The Reverend Dr. Jeffery Mackey but traces its sp ...

(''Ordo Praedicatorum Anglicanus'') *

Online Privacy Alliance The Online Privacy Alliance (or "OPA") was a cross-industry coalition of 81 e-commerce companies and associations. It formed in 1998 with the aim of providing a unified voice for companies in the Internet industry to contribute to the definition o ...

, 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, 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 so that by the early 17th century it comprised up to f ...

, 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 T ...

, a fraternal-lineage society first established as the Oregon Pioneer Society in 1867 *

Oregon Potters Association The Oregon Potters Association (OPA) is not-for-profit group of clay artists working in Oregon and southwest Washington, United States The United States of America (USA), also known as the United States (U.S.) or America, is a country prim ...

, a not-for-profit group of clay artists

People

Opa Muchinguri Oppah Chamu Zvipange Muchinguri-Kashiri (born 14 December 1958) is a Zimbabwean politician who serves as minister of defence in the cabinet of Zimbabwe since 2018. She has also served as Minister of Higher Education and Minister of Women's Affa ...

, a Zimbabwean politician *

Opa Nguette Opa Nguette (born 8 July 1994) is a professional footballer who plays for KTFF Süper Lig club Mağusa Türk Gücü and the Senegal national team. He plays as an attacking midfielder and striker. Nguette was a France youth international, hav ...

, 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 OPA is a mixture of isopropyl alcohol and isopropylamine that is used in the production of the sarin nerve agent. The mixture reacts with methylphosphonyl difluoride Methylphosphonyl difluoride (DF), also known as EA-1251 or difluoro, is a chemi ...

, a mixture used in chemical weapons *

Ortho-phthalaldehyde Phthalaldehyde (sometimes also ''o''-phthalaldehyde or ''ortho''-phthalaldehyde, OPA) is the chemical compound with the formula C6H4(CHO)2. It is one of three isomers of benzene dicarbaldehyde, related to phthalic acid. This pale yellow solid is ...

, 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 op ...

, a laser light source that emits light of variable wavelengths

Computing

Opa (programming language) Opa is a programming language for developing scalable web applications. It is free and open-source software released under a GNU Affero General Public License (AGPLv3), and an MIT License. It can be used for both client-side and server-side s ...

, a web development platform * Intel

Omni-Path Omni-Path Architecture (OPA) is a high-performance communication architecture developed by Intel. It aims for low communication latency, low power consumption and a high throughput. It directly competes with InfiniBand. Intel planned to develop te ...

architecture, a design for high performance computing *

Open Platform Architecture Ericsson Mobile Platforms AB (EMP) was the name of a company within the Ericsson group that supplied ''mobile platforms'', i.e. the technological basis on which a cellular phone product can be built. The main office was in Lund, Sweden. EMP was ...

, 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 subsidiary of the Linux Foundation founded in 2015 to support cloud-native computing. History It was announced alongside Kubernetes 1.0, an open source container cluster manager, which was contri ...

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

, 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 cov ...

, a device used to keep the upper respiratory airway open *

Out-patient A patient is any recipient of health care services that are performed by healthcare professionals. The patient is most often ill or injured and in need of treatment by a physician, nurse, optometrist, dentist, veterinarian, or other h ...

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

, Vanuatu (also known as Opa) *

Opa (expression) ''Opa'' () is a common Mediterranean, Eastern European, Middle Eastern, North African, South Asian, Latin American, and Hebrew emotional expression. It is frequently used during celebrations such as weddings or traditional dancing. In Greek c ...

, an interjection used in various cultures *

Opa (roller coaster) Opa or OPA may refer to: Arts and media Fictional characters and entities * Olivia Pope & Associates, a fictional crisis management firm in ''Scandal'' * Outer Planets Alliance, a fictional organization in James S.A. Corey's ''Leviathan Wakes ...

, a closed roller coaster in Wisconsin * Toyota Opa, a car * Opa Station, a North Korean railway station * OPA grade tea *

Maricopa people The Maricopa or PiipaashBarry Pritzker, ''A Native American Encyclopedia.'' Oxford: Oxford University Press, 1998; p. 56 are a Native Americans in the United States, Native American tribe, who live in the Salt River Pima-Maricopa Indian Commu ...

, a Native American tribe