Urszula Józefa Gacek (born 17 March 1963) is a Polish politician and a former member of the European Parliament, representing Civic Platform.

She then worked as a financial analyst and as an author of chemical and energy publications before entering politics.

Gacek served as a member of the Polish Senate for the Civic Platform party between 2005 and 2007.

In 2007 she became a Member of the European Parliament and sat with her colleagues in the EPP-ED group, serving, amongst others, on the Committee on Civil Liberties, Justice and Home Affairs and the Delegation for Relations with the USA.

[2] She as of 2020 headed the Organization for Security and Co-operation in Europe's election observation mission to the United States.