Cardiff City Football Club (Welsh: Clwb Pêl-droed Dinas Caerdydd) is a professional association football club based in Cardiff, Wales. The club competes in the EFL Championship in the 2026–27 season following promotion. Founded in 1899 as Riverside A.F.C., the club changed its name to Cardiff City in 1908 and entered the Southern Football League in 1910 before joining the English Football League in 1920. The team has spent 17 seasons in the top tier of English football, the longest period being between 1921 and 1929. Their most recent season in the top flight was the 2018–19 Premier League season.
Cardiff City is the only team from outside England to have won the FA Cup, doing so in 1927. They have also reached three other cup finals in English competitions, the 1925 FA Cup final against Sheffield United, the 2008 FA Cup final against Portsmouth and the 2012 Football League Cup final against Liverpool, suffering defeat on each occasion. They have won the Welsh Cup on 22 occasions, making them the second-most successful team in the competition's history behind Wrexham.
Following a meeting at the home of lithographic artist Bartley Wilson in Cardiff, the club was founded in 1899 as Riverside A.F.C. as a way of keeping players from the Riverside Cricket Club together and in shape during the winter months. In their first season, they played friendlies against local sides at their Sophia Gardens ground. In 1900 they joined the Cardiff & District League for their first competitive season. When King Edward VII granted Cardiff city status in 1905, the club put in a request to the South Wales and Monmouthshire Football Association to change their name to Cardiff City. The request was turned down as they were deemed not to be playing at a high enough level. To enhance their standing, the team arranged to join the South Wales League in 1906. Two years later they were granted permission to change the name of the club to Cardiff City.
Although growing in stature, the club was forced to turn down the opportunity to join the newly formed Second Division of the Southern Football League due to a lack of facilities at their Sophia Gardens ground. Over the next two years, Cardiff played friendlies against some of Britain's top professional sides, including Middlesbrough, Bristol City, and Crystal Palace. The matches were played at grounds in Cardiff and nearby towns so as to gauge the level of public interest in the team. The club eventually secured land to build their own stadium, Ninian Park, which was completed in 1910. The club turned professional the same year. They made their first signing the following year with the acquisition of Jack Evans from fellow Welsh side Cwmparc.
With the new ground in place, Cardiff joined the Southern Football League Second Division and appointed their first manager, Davy McDougall, who became player-manager. They went on to finish in fourth place in their first year in the league. The board decided to replace McDougall with Fred Stewart, who had previous managerial experience with Stockport County. He set about adopting a more professional approach, signing several players with Football League experience, including brothers John and George Burton and Billy Hardy. Stewart led the team to promotion in his second season by winning the Second Division title. They remained in the First Division for the next decade, and finished in the top four on two occasions.
In 1920, the club submitted a successful application to join the Football League and were placed into the Second Division for the 1920–21 season. Stewart brought in several players with Football League experience, breaking the club's transfer record on two occasions to sign Jimmy Gill and later Jimmy Blair from The Wednesday. They played their first match in the Football League on 28 August 1920, defeating Stockport County 5–2. The side finished the season in second place to win promotion to the First Division. They finished behind Birmingham City on goal average, and reached the semi-final of the FA Cup. In their third season in the top-tier, the team finished runners-up to Huddersfield Town because of a goal average difference of 0.024. Cardiff drew their final match 0–0 as club record goalscorer Len Davies missed a penalty.
