Diana Kinnert is a German politician, political consultant, and publisher. In 2015 she became the youngest chief of staff in the history of the Bundestag when she ran the parliamentary office of Peter Hintze. She is a frequent media commentator on public policy in Germany, and is affiliated with a number of think tanks and advisory committess of the Christian Democratic Union of Germany.
In 2008 or 2009, Kinnert joined the Christian Democratic Union of Germany. In 2013, she worked on a project with the Federal Foreign Office to improve relations between Germany and Tunisia. She also worked on Germany–Israel relations through a project sponsored by The American Jewish Committee. Kinnert was part of a delegation of European politicians who visited the United States on the invitation of the United States Department of State, to build relationships with various American government agencies. In 2013, Kinnert was a contributor to the CDU monograph Das Zukunftsmanifest: Wie wir unser Land verändern wollen. In 2014, she founded the youth council of the Konrad Adenauer Foundation. Peter Tauber then brought her onto the CDU party reform committee Meine CDU 2017 to head their working group on youth. In April 2015, Kinnert began to work for the then-Vice President of the Bundestag, Peter Hintze. For 2 years, starting in July 2015, Kinnert headed his parliamentary office. This made her the youngest ever Bundestag chief of staff. In 2017, Kinnert published the book Für die Zukunft seh' ich schwarz: Plädoyer für einen modernen Konservatismus, the title of which is a reference to the CDU's official party color, as well as her belief that party reform was needed within the CDU. The book was published by Rowohlt Verlag. The book advocates for many of the positions of the CDU while also advancing ideas for how the party can renew itself and remain an electorally successful vehicle for conservative policies. In 2019, Paul Ziemiak appointed Kinnert as a member of the Federal Committee on Social Cohesion. Kinnert has also been an advisor to Angela Merkel, the Chancellor of Germany. Kinnert is a member of the research group European Institute of Exponential Technologies and Desirable Futures in the think tank Futur/io. She has also been a member of the think tank Foundation for the Rights of Future Generations. Kinnert also works as a publisher in various media groups. She is a frequent media commentator on German public policy, the future of party politics and particularly conservatism in Germany, and the internal culture of the CDU.