| Thadäus König | |
| Office: | President of the Landtag of Thuringia |
| Term Start: | 28 September 2024 |
| Predecessor: | Birgit Pommer |
| Office3: | Member of the Landtag of Thuringia |
| Constituency3: | Eichsfeld I |
| Majority3: | 6,803 (24.5%) |
| Predecessor3: | Gerold Wucherpfennig |
| Term Start3: | 27 October 2019 |
| Birth Date: | 1982 6, df=y |
| Birth Place: | Heilbad Heiligenstadt, East Germany |
| Party: | CDU (2002–present) |
Thadäus König (born 15 June 1982) is a German politician from Christian Democratic Union of Germany (CDU) who was elected to the Landtag of Thuringia in 2019. He has served as President of the Landtag of Thuringia since September 2024.[1]