Crystal Palace Football Club, commonly referred to as Crystal Palace or simply Palace, is a professional football club based in Selhurst, South London, England, which competes in the Premier League, the top-tier of English football. The club was formally created as a professional outfit in 1905 at the Crystal Palace exhibition building, but its origins can be traced back to 1861. The club used the FA Cup final stadium inside the exhibition grounds for their home games between 1905 and 1915, when they were forced to leave due to the outbreak of the First World War. In 1924, they moved to their current home at Selhurst Park.

Crystal Palace spent their early years as a professional club playing in the Southern League. They were elected to the Football League in 1920, and have mainly competed in the top two tiers of English football during their league history. Since 1964, Palace have only dropped below the second tier once, for three seasons between 1974 and 1977. During the late 1980s and early 1990s, Palace enjoyed a successful period in the top-flight, reaching the 1990 FA Cup final and challenging Arsenal and Liverpool for the English league title in 1990–91, finishing in third place, the club's highest league finish to date. They only missed out on UEFA Cup qualification due to a ban on English clubs.

The club were founder members of the inaugural Premier League in 1992–93, though they were relegated that season, as well as facing immediate relegations in 1994–95, 1997–98, and 2004–05. They were promoted to the Premier League once again in 2013 and have remained there since, achieving a club record-extending thirteenth consecutive top-flight season as of 2025–26, as well as reaching two more FA Cup finals in 2016 and 2025, with victory in the latter final resulting in the club's first major trophy in its history.

The club's kit colours were claret and blue until 1973, when they changed to the red and blue vertical stripes worn today. Palace have a long-standing and fierce rivalry with Brighton & Hove Albion that emerged in the 1970s, as well as sharing strong rivalries with local clubs Millwall and Charlton Athletic.