The 2005–06 FA Premier League was the 14th season of the Premier League. It began on 13 August 2005, and concluded on 7 May 2006. The season saw Chelsea retain their title after defeating Manchester United 3–0 at Stamford Bridge towards the end of April. On the same day, West Bromwich Albion and Birmingham City were relegated, joining Sunderland in the Championship for the following season. Chelsea drew the record they set the previous season, with 29 wins in home and away campaigns.

Chelsea Football Club is an English professional football club based in Fulham, West London. Founded in 1905, the team play their home games at Stamford Bridge. The club competes in the Premier League, the top division of English football. It won its first major honour, the League championship, in 1955. The club won the FA Cup for the first time in 1970, their first European honour, the Cup Winners' Cup, in 1971, and became the third English club to win the Club World Cup in 2022.