Leeds United Football Club is a professional football club based in Leeds, West Yorkshire, England. The club will compete in the Premier League in 2025–26 following promotion in the 2024–25 EFL Championship season.

Leeds United have won the League Championship three times, five Second Division titles, the FA Cup once, the League Cup once, the Charity Shield twice and the Inter-Cities Fairs Cup twice. The club had their most successful period under the management of Don Revie in the 1960s and 1970s, when they won the League title twice, the FA Cup once, the League Cup once and the Inter-Cities Fairs Cup twice. The club have also been runners-up five times in the League Championship, three times in the FA Cup, once each in the League Cup, the Charity Shield, the Inter-Cities Fairs Cup, the Cup Winners' Cup and the European Cup, and lost the play-off to keep the Inter-City Fairs Cup trophy.

Leeds United share rivalries with Manchester United and Chelsea. The team's traditional kit colours are white shirts, white shorts and white socks. Their badge features the White Rose of York, which is a symbol of Yorkshire.