The National Division or National League (Turkish: Millî Küme) was a top-level football competition organised by the Turkish Football Federation, including the most successful teams from Istanbul, Ankara, and İzmir in Turkey.

In the late 1920s, the demand for a national football league was growing in the general Turkish public, which showed in the country's newspapers and magazines, where the European counterparts were given as examples.

In 1937 that demand was fulfilled, as the Millî Küme was founded and began in March that year.

The main differences between both tournaments were the competition systems and the qualification criteria.

The competition was played within a year, it started just after the conclusion of the aforementioned regional leagues.

[2] The competition format was based on a double round-robin system, that means each club played the others twice, once at their home stadium and once at that of their opponents', for 14 games.