Charlton Athletic Football Club is an English professional football club based in Charlton, south-east London, which compete in , the third tier of the English football league system.
Their home ground is The Valley, where the club have played since 1919. They have also played at The Mount in Catford during the 1923–24 season, and spent seven years at Selhurst Park and the Boleyn Ground between 1985 and 1992, due to financial issues, and then safety concerns raised by the local council. The club's traditional kit consists of red shirts, white shorts and red socks, and their most commonly used nickname is The Addicks. Charlton share local rivalries with fellow South London clubs Crystal Palace and Millwall.
The club was founded on 9 June 1905 and turned professional in 1920. They spent one season in the Kent League and one season in the Southern League, before being invited to join the newly-formed Football League Third Division South in 1921. They won the division in the 1928–29 sea