Norderney is one of the seven populated East Frisian Islands off the North Sea coast of Germany. It is also a municipality in the district of Aurich in Lower Saxony.
The island is 14 km long and about 2.5 km wide, having a total area of about 26.3 km² and is therefore Germany's tenth largest island. Norderney's population amounts to about 6,200 people. In 1946 Norderney gained municipal status and belongs to the Aurich "Kreis" (county). On the northern side of the island lies a 14 km long sandy beach.
The neighboring island to the east is Baltrum, which lies about 800m away. To the west is the island of Juist, about 3km away.
The entire eastern half of Norderney belongs to the Wattenmeer National Park of Lower Saxony. Access to the park is restricted, as it is subdivided in zones of different accessibility for the protection of the wildlife. The status as a National Park also affects all kinds of traffic on the island, while especially car traffic is subject to strict regulations.
The mainland is easily reached via ferry operated by AG Reederei Norden-Frisia from the harbor, Norddeich pier near the northern German city of Norden. Norderney also possesses an airport with a 1,000 meter runway.