Cardiff City Football Club (Welsh: Clwb Pêl-droed Dinas Caerdydd) is a football team based in Cardiff. They are one of the three Welsh clubs competing in the Football League (along with Swansea City and Wrexham), currently playing in the Football League Championship. They play their home games at Ninian Park.

Cardiff City were founded in 1899 and are the only non-English side to have won any of the three major English competitions. They won the FA Cup in 1927, during a decade when they were one of the strongest sides in the English league. They have also been regular winners of the Welsh Cup, and as the winner of the Cup in 1966-67 gained entry to the UEFA Cup Winners' Cup, reaching the semi-finals in 1967-68.

Their history in recent years has been less successful but they have made some improvement in the last few seasons. In 1986, they were relegated to the Fourth Division, and over the next 14 years slipped into the league's basement division three times. In 1996 they were the league's third lowest placed team. However; a Football League Second Division playoff triumph in 2003 lifted them into the Football League First Division; and they are now just one promotion away from reaching the Premiership, which would make them the first non-English team to do so.