Brackenridge is a borough in Allegheny County, Pennsylvania, United States, located along the Allegheny River. It is part of the Greater Pittsburgh metropolitan area. The town is named for Henry Marie Brackenridge. The borough once had glass factories. An Allegheny Technologies steel mill, Allegheny Ludlum Brackenridge Works, plays a prominent role in the community, although most of the facility is located in Harrison Township.