Małgorzata Teresa Ostrowska, née Kuźniewska (born 31 July 1958) is a Polish political figure who served as a member of the Sejm of Poland from 19 September 1993 to 4 November 2007. A native of the northern town of Malbork, the seat of Malbork County in the Pomeranian Voivodeship, Małgorzata Ostrowska belongs to the Democratic Left Alliance and initially gained her Senate seat in the 1993 parliamentary election. She was a member of , Sejm 1997–2001, and Sejm 2001–2005. In the election held on 25 September 2005, she ran in the Gdańsk electoral district, receiving 12,861 votes, but two years later, enmeshed in a corruption investigation, she lost her parliamentary immunity and then her seat in the 2007 parliamentary election.