Uckermark – Barnim I is an electoral constituency (German: Wahlkreis) represented in the Bundestag. It elects one member via first-past-the-post voting. Under the current constituency numbering system, it is designated as constituency 57. It is located in northeastern Brandenburg, comprising the Uckermark district and most of the Barnim district. Uckermark – Barnim I was created for the inaugural 1990 federal election after German reunification. Since 2021, it has been represented by Stefan Zierke of the Social Democratic Party (SPD).