Unstrut-Hainich-Kreis I is an electoral constituency (German: Wahlkreis) represented in the Landtag of Thuringia. It elects one member via first-past-the-post voting. Under the current constituency numbering system, it is designated as constituency 8. It covers the northwestern part of Unstrut-Hainich-Kreis. Unstrut-Hainich-Kreis I was created for the 1994 state election. Since 2019, it has been represented by of the Christian Democratic Union (CDU).