Swansea City Association Football Club (Welsh: Clwb Pêl-droed Cymdeithas Dinas Abertawe) is a Welsh professional football club based in the city of Swansea, South Wales that play in the Premier League. The only Wales-based club in the division, they play their home matches at the Liberty Stadium.

The club was founded in 1912 and joined the Football League in 1921. The club changed their name in 1969, when it adopted the name Swansea City to reflect Swansea's new status as a city. They were promoted to the original Football League First Division in1981. It was during the following season they came close to winning the league title, but a decline then set near the season's end before finishing sixth, although a club record. It was from here the club suffered a relegation the season after, returning back to the Football League Fourth Division a few seasons later, then narrowly avoided relegation to the Football Conference in 2003. Prior to playing home matches at the Liberty Stadium, the team had previously hosted at the Vetch Field. The Swansea City Supporters Society Ltd owns 20% of the club,, with their involvement hailed by Supporters Direct as "the most high profile example of the involvement of a Supporters Trust in the direct running of a club".

England,Swansea