Katharina Fegebank (born 27 February 1977) is a German politician for the Alliance '90/The Greens, who has served as Second Mayor of Hamburg and Senator for Science, Research and Equality since 2015. She briefly served as acting First Mayor in March 2018.

Fegebank grew up in Bargteheide, as the daughter of two teachers.^[1]

On 22 June 2008, Fegebank was elected chair of the Green-Alternative List (GAL) in Hamburg, and became the youngest ever leader of a Green state association.^[2] Since 15 April 2015 she serves as Second Mayor of Hamburg as well as Senator for Science, Research, and Equal Rights in the Senate Scholz II.^[3] In this capacity, she is one of the state's representatives at the Bundesrat.

Fegebank was a Green Party delegate to the Federal Convention for the purpose of electing the President of Germany in 2017^[4][5] and in 2022.^[6]

On 14 March 2018, Fegebank became the acting head of the government of Hamburg after Olaf Scholz moved to the new Federal Government,^[7] until Peter Tschentscher was elected new Mayor of Hamburg on 28 March 2018. She continued to serve as Second Mayor and Senator for Science, Research, and Equal Rights in his government.

In the negotiations to form a so-called traffic light coalition of the Social Democrats (SPD), the Green Party and the FDP following the 2021 federal elections, Fegebank led her party's delegation in the working group on innovation and research; her co-chairs from the other parties are Thomas Losse-Müller and Lydia Hüskens.^[8]

• Aby Warburg Foundation, Chairwoman of the Board^[9]
• Academy of Sciences and Humanities in Hamburg, Ex-Officio Member of the Board of Trustees^[10]
• Alexander Otto Sportstiftung, Member of the Advisory Board^[11]
• Hamburgische Regenbogenstiftung, Member of the Board of Trustees^[12]
• Institute for the History of the German Jews (Institut für die Geschichte der deutschen Juden, IGdJ), Hamburg, Chair of the Advisory Board (Kuratorium)
• Hamburg Marketing Gesellschaft mbH (HMG GmbH), Ex-Officio Member of the Supervisory Board
• Hamburg Media School (HMS), Member of the Supervisory Board^[13]
• Helmholtz Association of German Research Centres, Ex-Officio Member of the Senate^[14]
• Max Planck Institute for Comparative and International Private Law, Member of the Board of Trustees^[15]
• Max Planck Institute for Meteorology, Member of the Board of Trustees^[16]
• University Medical Center Hamburg-Eppendorf, Chairwoman of the Board of Trustees^[17]

Fegebank supports a ban on full-face veils in schools, arguing that the burqa and the niqāb are "symbols of oppression".^[18]

Katharina Fegebank rejects a rent cap in Hamburg. Hamburg is one of the most expensive citys related to rents.^[19][20]

Fegebank has been in a relationship with businessman Mathias Wolf since 2015. In 2018, she became a mother of twin daughters.^[21] The family lives in Hamburg's Eilbek district.^[22] In July 2019, the family's house was vandalized.^[23]