| Thomas Losse-Müller | |
| Office3: | Leader of the Opposition in the Landtag of Schleswig-Holstein |
| 1Namedata3: | Daniel Günther |
| Term Start3: | 7 June 2022 |
| Term End3: | 12 December 2023 |
| Predecessor3: | Serpil Midyatli |
| Successor3: | Serpil Midyatli |
| Office4: | Leader of the Social Democratic Party in the Landtag of Schleswig-Holstein |
| 1Namedata4: | Kai Dolgner |
| Deputy5: | Martin Habersaat Birte Pauls |
| Term Start4: | 18 May 2022 |
| Term End4: | 12 December 2023 |
| Predecessor5: | Serpil Midyatli |
| Successor5: | Serpil Midyatli |
| Office6: | State Secretary and Chief of the State Chancellery of Schleswig-Holstein |
| Term Start6: | 26 September 2014 |
| Term End6: | 28 June 2017 |
| Predecessor6: | Stefan Studt |
| Successor6: | Dirk Schrödter |
| Term Start7: | 12 June 2012 |
| Term End7: | 26 September 2014 |
| Predecessor8: | Stefan Studt |
| Successor8: | Philipp Nimmermann |
| Office2: | Member of the Landtag of Schleswig-Holstein |
| Term Start2: | 7 June 2022 |
| Constituency2: | Social Democratic List |
| Alma Mater: | University of Cologne, School of Oriental and African Studies, University of London |
| Residence: | Bistensee |
Thomas Losse-Müller (born 3 April 1973)[1] is a German politician. He is a member of the Social Democratic Party of Germany and former Leader of his Party in the Landtag of Schleswig-Holstein.[2]
Between 1992 and 1999, Losse-Müller studied Economics at the University of Cologne.[3] He went on to study Development Economics at the School of Oriental and African Studies.
From 2000 to 2004, Losse-Müller was an Assistant Vice President at Deutsche Bank in London. In 2004, he began working as a Financial Economist for the World Bank, until he began working as a program director for the German Society for technical cooperation in 2008. In 2010, Losse-Müller went back to work at the World Bank as a Senior Financial Sector Expert.
Before joining the Social Democratic Party of Germany in 2020, Losse-Müller was a member of Alliance 90/The Greens. He was a board member of the Hesse Alliance 90/The Greens between 2009 and 2012 and spokesperson to the Committee on Economy and Finance for the Hesse Alliance 90/The Greens between 2011 and 2012.
In 2012, Losse-Müller became State Secretary to the Schleswig-Holstein Ministry of Finance upon being invited to Schleswig-Holstein by Monika Heinold. He went on to serve as Head of the State Chancellery of Schleswig-Holstein between 2014 and 2017.
Between 2017 and 2021 Losse-Müller worked at EY Parthenon, a Consulting firm based in Hamburg.
In Fall of 2020, Losse-Müller became a member of the Social Democratic Party of Germany. He was nominated lead candidate for the 2022 state election in Schleswig-Holstein in August 2021.[4] [5]
Losse-Müller was elected his Party's Leader in the Landtag of Schleswig-Holstein on 18 May 2022 and thus became Leader of the Opposition.[2]
On 6 December 2023, Losse-Müller announced his resignation as Leader of the Social Democratic Party in the Landtag of Schleswig-Holstein.[6] He was succeeded by Serpil Midyatli, who is also his Predecessor.[7]
Losse-Müller was born as son to two teachers in Schwerte, North Rhine-Westphalia. He is married and has two daughters.