The Cabinet of Tadeusz Mazowiecki, led by Prime Minister Tadeusz Mazowiecki, came to power following the 1989 legislative election, and was appointed by the Sejm on 12 September 1989. Tadeusz Mazowiecki had been appointed Prime Minister on 24 August 1989, and tasked with the formation of a new government, after the Sejm rejected the Communist cabinet of Czesław Kiszczak. The cabinet resigned on 25 November 1990, and the Sejm accepted the resignation of the cabinet on 14 December, though it continued to perform its duties until the formation of the Cabinet of Jan Krzysztof Bielecki on 4 January 1991.
Małgorzata Niezabitowska served as government spokesman.