Orr

Orr or ORR may also refer to:

Acronyms

 * Office of Rail and Road, a regulatory body in the United Kingdom
 * Office of Refugee Resettlement, a program of the US Administration for Children and Families
 * 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, 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, United States, a small city
 * Orr, West Virginia, United States, an unincorporated community
 * Orr, a district of Pulheim, Germany
 * Orr Glacier, Victoria Land, Antarctica
 * Orr Island, Marie Byrd Land, Antarctica
 * Orr Peak, Ross Dependency, Antarctica
 * Urr Water, Scotland, United Kingdom, archaically known as the River Orr
 * Orr Formation, a geologic formation in Utah, United States

People

 * Orr (surname), including a list of people with this name
 * Orr Barouch (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 by Ursula K. Le Guin and two film adaptations

Other uses

 * Orr Academy High School, a public high school in Chicago, Illinois, United States
 * Orr School, Texarkana, Arkansas, United States, on the National Register of Historic Places
 * Yorketown Airport, IATA airport code "ORR"