Hanna Beata Gill-Piątek (née Stachowiak; born 13 April 1974) is a Polish politician, social activist, civil sevant, and columnist.

Hanna Gill-Piątek (née Stachowiak) was born on 12 April 1974 in Łódź, Poland, where she also attended the Nicholas Copernicus 1st General Education High School.

[6] From 2014 to 2016, she worked in the revitalizaton office of the Łódź City Hall, where she managed local pilot experiments of the Ministry of Infrastructure and Development.

[9][10] From 2016 to 2017, she was an acting director of the Social Issues Department of the city hall in Gorzów Wielkopolski.

(Ogólnowarszawski Ruch na Rzecz Obwodnicy Pozamiejskiej „Nie Przez Miasto!”).

[4][8][14] She organised performance art events, such as Backwards March for Tolerance in 2010, co-hosted with Joanna Rajkowska.

[21][22] In 2015, she candidated to be a member of the Sejm of Poland, on the list of United Left, representing the Greens.

[30][31][32] In February 2021, together with Joanna Mucha and Paulina Hennig-Kloska, she formed the Poland 2050 parliamentary group, becoming its chairperson.

[38][39] In 2023, the Supreme Council of Ukraine awarded her the White Cross "Honor et Gloria", for her activism and help regarding the Russo-Ukrainian War.