KB&mdashKjøbenhavns Boldklub, literally Copenhagen's Ballclub—is the oldest football (soccer) club on continental Europe, founded in 1876.

It is the most successfull club in the history of Danish football: It won the very first Danish Championship; and it has, in total, won the Championship 15 times.

At present, KB concentrates solely on talent development for F.C. Copenhagen, the professional, elite club, which is a superstructure on KB and another Copenhagen football club, B1903.

KB is also the most important tennis and cricket club in Denmark.