Oia or OIA may refer to:

Places

Oia, Spain Oia is a municipality in the province of Pontevedra in the autonomous community of Galicia, in Spain. It is situated in the ''comarca'' of O Baixo Miño. The Royal Monastery of Santa María de Oia The Royal Monastery of Santa Maria de Oia is a fo ...

, a municipality in Galicia, in the province of Pontevedra *

Oia, Greece Oia or Ia (Greek: Οία, pronounced ) is a small village and former community in the South Aegean on the islands of Thira (Santorini) and Therasia, in the Cyclades, Greece. Since the 2011 local government reform it has been part of the municipal ...

, a small town on the island of Santorini *Oia, alternate name of

Oea (Attica) Oea or Oia ( grc, Ὀία) or Oee or Oie (Οἴη) or Oe (Ὄη or Ὀή) was a deme of ancient Athens. The location of Oea has been a matter of debate, with some situating it above the Pythium, to the west of Mount Aegaleos, to the north of the ...

, a town of ancient Attica *Oia, alternate name of

Oea (Thera) Oea or Oia ( grc, Οἴα) was an ancient town on the island of Thera, mentioned by Ptolemy Claudius Ptolemy (; grc-gre, Πτολεμαῖος, ; la, Claudius Ptolemaeus; AD) was a mathematician, astronomer, astrologer, geographer, and ...

, a town of ancient Thera (Santorini)

Transportation

Ourilândia do Norte Airport Ourilândia do Norte Airport is the airport serving Ourilândia do Norte, Brazil. Airlines and destinations No scheduled flights operate at this airport. Access The airport is located from downtown Ourilândia do Norte. See also *List of ai ...

, an airport with IATA identifier OIA *

Orlando International Airport Orlando International Airport is a major public airport located 6 miles (10 km) southeast of Downtown Orlando, Florida. In 2021, it handled 19,618,838 passengers, making it the busiest airport in the state and seventh busiest airport i ...

("OIA" is a local abbreviation), which actually uses the letters MCO for its airport designation

Government

Office of the Independent Adjudicator The Office of the Independent Adjudicator for Higher Education (OIA) is a company limited by guarantee and a registered charity which has been designated under the Higher Education Act 2004 to run the higher education student complaints scheme wi ...

, the higher-education ombudsman in the United Kingdom *

Official Information Act 1982 The Official Information Act 1982 (OIA) is an Act of the New Zealand Parliament which creates a public right to access information held by government bodies. It is New Zealand's primary freedom of information law and has become an important pa ...

, a piece of New Zealand legislation *

Office of Insular Affairs The Office of Insular Affairs (OIA) is a unit of the United States Department of the Interior that oversees federal administration of several United States insular areas. It is the successor to the Bureau of Insular Affairs of the War Department ...

, an office of the United States Department of the Interior *

DHS Office of Intelligence and Analysis The Office of Intelligence and Analysis (I&A) is the civilian national intelligence component of the United States Department of Homeland Security and one of two statutory members of the United States Intelligence Community (IC) within DHS, the ot ...

, an office of the United States Department of Homeland Security *

Office of Intelligence and Analysis (Treasury Department) The Office of Intelligence and Analysis (OIA) is a component of the United States Department of the Treasury responsible for the receipt, analysis, collation, and dissemination of foreign intelligence and counterintelligence information related t ...

, the intelligence organization of the U.S. Department of the Treasury *

Oman Investment Authority Oman Investment Authority is a sovereign wealth fund in Oman. It is one of few entities where the Sultanate of Oman channels its excess oil revenues. It was founded in 2020 by a royal decree and is a member of the International Forum of Sovereign ...

, a sovereign wealth fund

Other uses

* ''Oia'' (spider), a genus of spiders in the family

Linyphiidae Linyphiidae, spiders commonly known as sheet weavers (from the shape of their webs), or money spiders (in the United Kingdom, Ireland, Australia, New Zealand, and in Portugal, from the superstition that if such a spider is seen running on you, ...

Oahu Interscholastic Association The Oahu Interscholastic Association (OIA) is an athletic conference composed of all public secondary schools on the island of Oahu, Hawaii, U.S.A. The OIA was first founded in 1940 as the Rural Oahu Interscholastic Association (ROIA). The five ...

, an athletic association of public secondary schools on the island of Oahu, Hawaii *

Old Indo-Aryan The Indo-Aryan languages (or sometimes Indic languages) are a branch of the Indo-Iranian languages in the Indo-European language family. As of the early 21st century, they have more than 800 million speakers, primarily concentrated in India, Pa ...

, the earlier Indo-Aryan languages