The 1925–26 Landsfodboldturneringen was the 13th edition of the Danish national football championship play-offs, a Danish FA-organised club football tournament between the championship clubs from each of the six regional football associations. In advance of the tournament, a play-off structure had been agreed, which meant that the winners of KBUs Mesterskabsrække were directly qualified for the national championship final against the winner of the Provincial championship tournament.