Region (disambiguation)

Region is a term used by contemporary geographers to describe an area of land or water that is part of a larger whole.

Region or Regional may also refer to:

Geography

 * Regional Australia, a term used in Australia for populated regions outside of major cities

Transportation

 * RegionsAir, an airline based in the United States
 * Regional airline, any airline that services a limited area, or any of several specific regional airlines, including
 * Régional (2001–2013), a defunct airline based in France
 * Regional Airlines (France) (?–2001), a defunct airline based in France
 * Regional Air (Papua New Guinea), an airline based in Papua New Guinea
 * Regional Air (Kenya) (2000–2005), a defunct airline based in Kenya
 * Regional Air (est. 1997), an airline based in Tanzania
 * Regional Express Airlines, an airline based in Australia
 * Regional 1 (airline) (2003–2019), an airline based in Canada
 * Regional Pacific Airlines, a defunct airline based in Australia

Regional is also the name of at least two rail lines:
 * Regional Railways one of the three former passenger sectors of British Rail from 1981 to 1996
 * Regional (Amtrak), a train line that runs between Massachusetts and Virginia

Computer science

 * Region (model checking), a convex polytope data structure
 * Region-based memory management, a memory management technique in which allocations are organized into regions and all objects in a region can be deallocated at once
 * In raster graphics, a region is a data structure used to represent an arbitrary set of pixels (in Apple QuickDraw) or series of shapes (Microsoft Windows Graphics Device Interface or X Window System) to be drawn on the screen
 * In digital audio editing, a region is a reference to a portion of an audio file

Mathematics and physics

 * Region (mathematical analysis), a non-empty, open, connected set

Corporations

 * Regions Financial Corporation, a banking and financial services company headquartered in Birmingham, Alabama

Politics

 * Region (administrative), a governmental subdivision of a nation
 * Region (Europe), a political subdivision within the European Union

Fiction

 * Regional novel, see
 * American Literary Regionalism
 * British regional literature

Media

 * DVD region code
 * Blu-ray Region code