# Allegheny

Allegheny, Alleghany or Allegany may refer to:

## Places
### Geologic and geographic features

* Allegheny River, in Pennsylvania and New York
* Allegheny Mountains, part of the Appalachian Mountain Range in West Virginia, Pennsylvania, Maryland and Virginia
** Allegheny Mountain (Pennsylvania), major mountain ridge in the northern part of the Allegheny Mountains
** Little Allegheny Mountain, in Pennsylvania and Maryland; see list of mountains of the Alleghenies
** Allegheny Mountain (West Virginia–Virginia), major mountain ridge in the southern part of the Allegheny Mountains
** Back Allegheny Mountain, in West Virginia
* Allegheny Plateau, which terminates in the east at the Allegheny Mountains
* Allegheny Front, the escarpment delineating the eastern edge of the Allegheny Plateau
* Allegheny Formation, a mapped bedrock unit of West Virginia, Maryland and Pennsylvania

### Counties

* Allegany County, Maryland
* Allegany County, New York
* Alleghany County, North Carolina
* Alleghany County, Virginia
* Allegheny County, Pennsylvania

### Communities and townships

* Alleghany, California, unincorporated community in Sierra County
* Allegheny, Kentucky
* Allegheny, Pennsylvania, a city annexed by the city of Pittsburgh in 1907
* Allegheny Township, Blair County, Pennsylvania
* Allegheny Township, Butler County, Pennsylvania
* Allegheny Township, Cambria County, Pennsylvania
* Allegheny Township, Somerset County, Pennsylvania
* Allegheny Township, Venango County, Pennsylvania
* Allegheny Township, Westmoreland County, Pennsylvania

### Protected areas

* Allegheny National Forest, Pennsylvania
* Allegheny National Recreation Area, Pennsylvania
* Allegheny Wildlife Management Area, in Mineral County, West Virginia
* High Allegheny National Park and Preserve, a proposed NPS unit in West Virginia

### Man-made features

* Allegheny Cabin (Rohrbaugh Cabin), historic structure in eastern West Virginia
* Allegheny Observatory, at the University of Pittsburgh
* Allegheny Mountain Tunnel, a vehicular tunnel on the Pennsylvania Turnpike
* Allegheny Reservoir, a reservoir on the Allegheny River
* Allegheny River Tunnel, a light rail tunnel under the Allegheny River in Pittsburgh
* Trans-Allegheny Lunatic Asylum, a former psychiatric hospital turned tourist attraction in West Virginia

### Trails

* Allegheny Trail, a hiking trail in West Virginia
* Great Allegheny Passage including parts in Maryland and Pennsylvania
* Allegheny Highlands Trail of Maryland, a rail trail

## Rail

* Allegheny (train), a passenger train operated by the Pennsylvania Railroad
* Allegheny Railroad, a railroad operating in northwestern Pennsylvania (1985–92)
* Allegheny station (disambiguation), stations of the name
* Allegheny Valley Railroad, a railroad operating in Western Pennsylvania since 1992
* Allegheny Valley Street Railway, an electric rail line operating along the Allegheny River (1906–37)
* Allegheny class, a class of 2-6-6-6 locomotives

## Organizations

* Alleghany Corp., an insurance holding company
* Allegheny Airlines, a forerunner of US Airways
* Allegheny College, in Meadville, Pennsylvania
* Allegheny Energy, a public utility (including its subsidiary Allegheny Power)
* Allegheny Foundation, a charitable organization focused on Western Pennsylvania
* Allegheny Mountain Radio, a network of radio stations in West Virginia and Virginia
* Allegheny Technologies, a specialty metals company
* Allegheny (titular see), a Roman Catholic titular see
* Pittsburgh Allegheny (International Association), a nineteenth century minor league baseball team that, at times, played under the name "Allegheny"

## Biology

* Pachysandra procumbens or Allegheny pachysandra, a plant in the box family
* Allegheny woodrat, a species of pack rat in the eastern US
* Allegheny Mountain dusky salamander, a species of the eastern US and Canada
* Allegheny mound ant, a species of the eastern US and Canada
* "Allegheny alligator", nickname for the hellbender
* Allegheny chinquapin (Castanea pumila), a species of chestnut