She is an Italian journalist and politician. She got a degree in modern literature from the Sapienza University of Rome. She worked as a journalist for newspapers, magazines, and television (RAI).
Silvia Costa was a member of the European Parliament between 2009 and 2019. Since 2009, she was a member of Group of the Progressive Alliance of Socialists and Democrats in the European Parliament and Partito Democratico. She was also a member of Committee on Culture and Education, Conference of Committee Chairs, Delegation to the EU-Albania Stabilisation and Association Parliamentary Committee, Committee on Culture and Education, Committee on Women's Rights and Gender Equality and Delegation for relations with Iraq.
From 2009, she was a Vice-Chair in Committee on Culture and Education. She was also a substitute of Committee on Employment and Social Affairs, Delegation for relations with the countries of Southeast Asia and the Association of Southeast Asian Nations (ASEAN), Committee on Civil Liberties, Justice and Home Affairs and the Committee on Women's Rights and Gender Equality.