Mittelnkirchen (in High German, in Low Saxon: Mittelskark) is a municipality in the district of Stade, Lower Saxony, Germany.

[2] In religious respect, however, Mittelnkirchen formed part of the Roman Catholic Diocese of Verden until after 1566 its incumbent bishops lost papal recognition, except of a last Catholic bishop from 1630 to 1631, respectively.

During the Leaguist occupation under Tilly (1628–1630), they suffered from attempts of re-Catholicisation.

In 1648 the prince-archbishopric was transformed into the Duchy of Bremen, which was first ruled in personal union by the Swedish – interrupted by a Danish occupation (1712–1715) – 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 Mittelnkirchen, became part of the Stade Region, established in 1823.