Association football is the most popular sport in Denmark, with 331,693 players and 1,647 clubs registered under the Danish FA. The game was introduced into Denmark by British sailors. Kjøbenhavns Boldklub is the oldest club outside of the United Kingdom, having been founded on 26 April 1876.

The Danish Superliga is the current Danish football championship tournament, and administered by the Divisionsforeningen. It is the highest football league in Denmark and is currently contested by 12 teams each year, with two teams relegated.