Bliedersdorf (German pronunciation: [ˈbliːdɐsˌdɔʁf]; in Low Saxon: Bliersdörp) is a municipality in the district of Stade, Lower Saxony, Germany.

It is east of Nottensdorf, southwest of Horneburg, and northwest of the simple dolmen megaliths of Grundoldendorf.

In the mid-16th century, the inhabitants adopted Lutheranism, in recognition of the principle of Cuius regio, eius religio formalized by the Peace of Augsburg.

In 1648 the Prince-Archbishopric was transformed into the Duchy of Bremen, which was first ruled in personal union by the Swedish and from 1715 on by the Hanoverian Crown.

In 1813 the duchy was restored to the Electorate of Hanover, which – after its upgrade to the Kingdom of Hanover in 1814 – incorporated the Duchy in a real union and the ducal territory, including Bliedersdorf, became part of the Stade Region, established in 1823.