Orr or ORR may also refer to:

Acronyms

Office of Rail and Road The Office of Rail and Road (ORR) is a non-ministerial government department responsible for the economic and safety regulation of Britain's railways, and the economic monitoring of National Highways. ORR regulates Network Rail by setting its ...

, a regulatory body in the United Kingdom *

Office of Refugee Resettlement The Office of Refugee Resettlement (ORR) is a program of the Administration for Children and Families, an office within the United States Department of Health and Human Services, created with the passing of the United States Refugee Act of 1980 ( ...

, a program of the US Administration for Children and Families *

Oxygen reduction reaction In chemistry, the oxygen reduction reaction refers to the reduction half reaction whereby O2 is reduced to water or hydrogen peroxide. In fuel cells, the reduction to water is preferred because the current is higher. The oxygen reduction reaction ...

, a type of chemical reaction * Outer Ring Road (disambiguation), a series of roads in various places * Operational Readiness Review (ORR), used by the US government * ORR,

objective response rate Clinical endpoints or clinical outcomes are outcome measures referring to occurrence of disease, symptom, sign or laboratory abnormality constituting a target outcome in clinical research trials. The term may also refer to any disease or sign tha ...

, or overall response rate, one of the parameters determined during clinical trials for pharmaceutical products

Places

* Orr, Kentucky, United States, an unincorporated community *

Orr, Minnesota Orr is a city in Saint Louis County, Minnesota, United States. The population was 211 at the 2020 census. U.S. Highway 53 serves as a main route in Orr. Orr is located within the Kabetogama State Forest in Saint Louis County. History Orr g ...

, United States, a small city * Orr, West Virginia, United States, an unincorporated community * Orr, a district of

Pulheim Pulheim (; Ripuarian language, Ripuarian: ''Pullem'') is a town in the Rhein-Erft-Kreis, North Rhine-Westphalia, Germany. Since the 1920s, a large substation of the ''Rheinisch-Westfälisches Elektrizitätswerk AG'' (RWE) is located at Pulheim. I ...

, Germany * Orr Glacier, Victoria Land, Antarctica * Orr Island, Marie Byrd Land, Antarctica *

Orr Peak The Miller Range () is a mountain range extending south from Nimrod Glacier for along the western edge of the Marsh Glacier in Antarctica. Named for J.H. "Bob", now Sir Joseph Holmes Miller, a member of the New Zealand party of the Commonwealth Tr ...

, Ross Dependency, Antarctica *

Urr Water Urr Water or River Urr ('' arc. River Orr'') is a river in which flows through the counties of Dumfriesshire and Kirkcudbrightshire in southwest Scotland. Course Entirely within Dumfries and Galloway, the Urr Water originates at Loch Urr and flow ...

, Scotland, United Kingdom, archaically known as the River Orr *

Orr Formation The Orr Formation is a geologic formation in Utah. It preserves fossils dating back to the Cambrian period. See also * List of fossiliferous stratigraphic units in Utah * Paleontology in Utah The location of the state of Utah Paleontology i ...

, a geologic formation in Utah, United States

People

Orr (surname) Orr is a surname of Irish and Scottish origin. It is derived from the Gaelic ''Odhar'' meaning "dark, pale". In Scotland, Orr may be a sept of Clan Campbell. Etymology The primary origin is from the Gaelic ''odhar'', meaning "dark", "dun". This ...

, including a list of people with this name *

Orr Barouch Orr Barouch ( he, אור ברוך; born 29 November 1991) is an Israeli footballer who currently plays for Cal FC. Career Early life and career Barouch is Jewish, and was born in Haifa, Israel. He moved to the United States with his parents a ...

(born 1991), Israeli footballer

Fictional characters

* Orr (''Catch-22''), a fictional character in the novel ''Catch-22'' and the film adaptation * George Orr, protagonist of the science-fiction novel ''

The Lathe of Heaven ''The Lathe of Heaven'' is a 1971 science fiction novel by American writer Ursula K. Le Guin. The plot concerns a character whose dreams alter past and present reality. The story was serialized in the American science fiction magazine ''Amazing ...

'' by Ursula K. Le Guin and two film adaptations

Other uses

Orr Academy High School Rezin Orr Academy High School is a public four-year high school bordered between the neighborhoods of West Garfield and Humboldt Park located on the West Side of Chicago, Illinois. It is a part of the Chicago Public Schools district and is manag ...

, a public high school in Chicago, Illinois, United States *

Orr School The Orr School is a historic school building at 831 Laurel Street in Texarkana, Arkansas. It is a single story wood-frame structure, with a hip roof that has exposed rafters. It is clad in white shiplap siding. The interior has a long, narrow ha ...

, Texarkana, Arkansas, United States, on the National Register of Historic Places *

Yorketown Airport Yorketown Airport (IATA:ORR, ICAO:YYOR) is a regional, uncontrolled airport located in Yorketown on the Yorke Peninsula, South Australia. The airfield is run and operated by the Yorke Peninsula Council. The airfield is used as an emergency la ...

, IATA airport code "ORR"