Małgorzata Maria Kidawa-Błońska (née Grabska; Polish: [mawɡɔˈʐata kiˈdava ˈbwɔɲska]; born 5 May 1957) is a Polish politician, film producer, and sociologist currently serving as Marshal of the Senate. She was Marshal of the Sejm from 25 June 2015 to 11 November 2015 at the end of the Seventh term's composition of the lower house, after which being voted a Deputy Marshal of the Eighth and Ninth term, each time nominated by the opposition party Civic Platform, under the marshalcy of Marek Kuchciński and Elżbieta Witek, respectively. She is first to serve as the chairperson of both houses of the Polish Parliament.
Kidawa-Błońska served ministerial functions, such as Secretary of State in the Second Cabinet of Donald Tusk (2012–2014) and the Cabinet of Ewa Kopacz (2014–2015) and Press Spokeswoman for both cabinets in 2014 and 2015. She was the Civic Platform nominee for Prime Minister in the 2019 Polish parliamentary election, losing to Law and Justice incumbent Mateusz Morawiecki. In 2019, she was elected the Civic Platform's candidate for Presidency of Poland to stand in the 2020 Polish presidential election. Kidawa-Błońska resigned from her candidacy on 15 May 2020.