Eichstruth () is a village and a former municipality in the district of Eichsfeld in Thuringia, Germany. By area, it was the smallest municipality in what was East Germany. On 1 January 2024 it became part of the municipality Uder.Thüringer Gesetz zur freiwilligen Neugliederung kreisangehöriger Gemeinden im Jahr 2024 , Gesetz- und Verordnungsblatt für den Freistaat Thüringen, 2023 Nr. 15, pp. 347-348

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