The 2005–06 Polish Cup was the fifty-second season of the annual Polish cup competition.
It began on 2 August 2005 with the Preliminary Round and ended on 3 May 2006 with second leg of the Final, played at Stadion im.
Kazimierza Górskiego, Płock.
The first legs took place between 22 November and 13 December, when the second legs took place between 29 November 2005 and 7 March 2006.
Wisła Płock won 6–3 on aggregate.