Otterndorf (German: [ˈɔtɐndɔʁf] ⓘ; Northern Low Saxon: Oterndörp) is a town on the coast of the North Sea in the federal state of Lower Saxony, Germany, and is part of the collective municipality (Samtgemeinde) of Land Hadeln.

The town, located in the administrative district (Landkreis) of Cuxhaven, is at the mouth of the river Medem, part of the Elbe delta.

In 1728 Emperor Charles VI enfeoffed the George II Augustus and his House of Hanover in personal union with the reverted fief of Saxe-Lauenburg.

The Kingdom of Hanover incorporated the Land of Hadeln in a real union and its territory, including Otterndorf, became part of the new Stade Region, established in 1823.

The crane effigy atop the house which is the building's namesake was placed there by Elizabeth Radiek in memory of her late husband.

The Crane House today is the location of a museum dedicated the country life of Hadeln, as well as a local history archive.

Other prominent buildings in the town include: A British cargo ship by the name of SS Kaffraria owned by Bailey & Leetham of Hull ran aground at Otterndorf on 7 January 1891.

The ship had a cargo of general export goods such as kitchen utensils, children's toys, bundles of wool, hand tools and all kinds of domestic appliances.

The knight, who knew his mother was no witch, hurried back to seek a pardon from the Duke of Lauenburg, with whom he was in good favor.