Has Derby County ever qualified for the Champions League?

No, Derby County Football Club has never qualified for the Champions League. The Champions League is the top level of European football, and teams from England, Scotland, Wales and Northern Ireland are eligible to compete. The only English team to have ever qualified for the Champions League is Manchester United, who have done so on five occasions. Derby County Football Club has never even qualified for the Europa League, which is the second tier of European competition. The furthest the club has reached in Europe is the semi-finals of the European Cup in 1973, which is now known as the UEFA Champions League. Despite this, the club has had some success on the domestic front - winning the First Division title in 1972 and the FA Cup in 1946.