KBUs Pokalturnering (unofficial English translation: KBU Cup, Copenhagen Cup) was a Danish regional knockout association football competition contested annually from 1910 to 1953 by clubs that were members of the regional football association Copenhagen FA (KBU). Organised by and named after KBU, the competition rules has varied from being open to all Copenhagen clubs (1910–1919 and 1947–1953) and being a closed tournament (1920–1946) reserved only for the highest ranking clubs, and as a consequence the number of participants have varied greatly throughout its history. For the first 10 seasons, between 7 and 13 teams participated until a fixed number of 8 teams was introduced from 1920 until 1946. When both the (who for several seasons had functioned as a qualifying tournament) and the ,