Chelsea Football Club is an English professional association football club based in Fulham , West London, England. They compete in the Premier League , the top tier of English football , and are one of the most successful clubs in English football history . In domestic football, Chelsea have won six top-flight league titles, eight FA Cups , five League Cups , four FA Community Shields and two Full Members' Cups . In international football, they have won two UEFA Champions Leagues , two UEFA Europa Leagues , two UEFA Cup Winners' Cups , two UEFA Super Cups , two FIFA Club World Cups and one UEFA Conference League .
