Polish National Government of 1831 was a Polish supreme authority during the November Uprising against the Russian occupation of the Polish–Lithuanian Commonwealth. It was formed by the decree of the Sejm (parliament) of the Congress Poland on 29 January 1831 to assume the competences of the Polish head of state in the follow-up of an earlier decree of 25 January: deposing the usurping Tsar Nicholas I of Russia from the throne of Poland.