Urszula Sara Zielińska (born 3 October 1977) is a Polish social and political activist, member of the Sejm, and co-chair of The Greens.

[1] Zielińska graduated in management and marketing from the Academy of Leon Koźmiński in Warsaw.

She participated in protests against the logging of the Białowieża Forest and was involved in the Save Women project.

She is the author of the program entitled "Poland without smog", proposed by the Green Party.

[2] Zielińska unsuccessfully ran in the 2019 European Parliament election in Poland,[4] obtaining 7,783 votes.