Uder is a municipality located in the district of Eichsfeld within the state of Thuringia, Germany. It serves as a local administrative area characterized by its regional integration within the German federal system.
The current municipality was established on January 1, 2024, through a merger involving the former municipality of Uder and ten surrounding municipalities: Birkenfelde, Eichstruth, Lenterode, Lutter, Mackenrode, Röhrig, Schönhagen, Steinheuterode, Thalwenden, and Wüstheuterode.