The Pittsburgh Steelers are a professional football team based in Pittsburgh, Pennsylvania. The team currently belongs to the North Division of the American Football Conference (AFC) in the National Football League (NFL). Founded in 1933, the Steelers are the oldest franchise in the AFC. Pittsburgh has won more Super Bowl titles (six), won more AFC Championship Games (eight) and played in (fifteen) and hosted more (eleven) conference championship games than any other AFC or NFC team. The Steelers share the record for most Super Bowl appearances with the Dallas Cowboys (eight). The Steelers won their most recent championship, Super Bowl XLIII, on February 1, 2009.

The Steelers were founded as the Pittsburgh Pirates on July 8, 1933, by Art Rooney, taking its original name from the baseball team of the same name, as was common practice for NFL teams to do at the time. The ownership of the Steelers has remained within the Rooney family since its founding. The current owner is Art's son, Dan Rooney, who has given much control of the franchise to his son Art Rooney II. Long one of the NFL's flagship teams, the Steelers enjoys a large, widespread fanbase nicknamed Steeler Nation. The Steelers currently play their home games at Heinz Field on Pittsburgh's North Side in the North Shore neighborhood, which also hosts the University of Pittsburgh Panthers. Built in 2001, the stadium replaced Three Rivers Stadium which hosted the Steelers for 31 seasons. Prior to Three Rivers, the Steelers had played their games in Pitt Stadium and Forbes Field.

Pittsburgh ( /ˈpɪtsbərɡ/, PITS-burg) is the second largest city in the U.S. Commonwealth of Pennsylvania and the county seat of Allegheny County. Regionally, it anchors the largest urban area of both Appalachia and the Ohio River Valley. Nationally, it is the 22nd largest urban area in the United States. The population of the city in 2010 was 305,704, while that of the seven-county metropolitan area stood at 2,356,285.Downtown Pittsburgh retains substantial economic influence, ranking at 25th in the nation for jobs within the urban core and 6th in job density. The characteristic shape of Pittsburgh's central business district is a triangular tract carved by the confluence of the Allegheny and Monongahela rivers, which form the Ohio River. The city features 151 high-rise buildings, 446 bridges, two inclined railways, and a pre-revolutionary fortification. Pittsburgh is known colloquially as "the City of Bridges" and "the Steel City" for its many bridges and former steel manufacturing base.