Franziska Brantner was born in Lörrach in 1979. She has been in the Bundestag since 2013. Before that, she was a Member of the European Parliament for four years. She studied political science and economics, is a social scientist and completed degrees in Paris and New York. She completed her doctorate in Mannheim on the United Nations' capacity for reform.

From December 2013 to September 2017, she was Spokesperson for Children and Family Policy for the Alliance 90/The Greens parliamentary group in the Bundestag; from March 2014 to September 2017, she was Chair of the Subcommittee on Civilian Crisis Prevention, Conflict Transformation and Networked Action; from 2013 to 2017, she was a substitute member of the Committee on Foreign Affairs and the Committee on the Affairs of the European Union.

From February 2018 to 2021, she was the European Policy Spokesperson and Parliamentary Secretary of Alliance 90/The Greens' parliamentary group, a member of the Committee on European Union Affairs and a substitute member of the Foreign Affairs Committee.

In 2021, she won the direct mandate for the electoral district of Heidelberg. Since then (election period 20), she has been Parliamentary State Secretary in the Federal Ministry of Economics and Climate Protection.