Uckermark I is an electoral constituency (German: Wahlkreis) represented in the Landtag of Brandenburg. It elects one member via first-past-the-post voting. Under the constituency numbering system, it is designated as constituency 11. It is located in the Uckermark district Geography. The constituency includes the towns of Nauen and Prenzlau, as well as the communities of Nordwestuckermark and Uckerland, and the administrative divisions of Brüssow, Gerswalde and Gramzow. There were 45,603 eligible voters in 2024.