Wangerooge is one of the 32 Frisian Islands in the North Sea located close to the coasts of the Netherlands, Germany and Denmark. It is also a municipality in the district of Friesland in Lower Saxony in Germany.

Wangerooge is one of the East Frisian Islands. It is the easternmost and smallest of the inhabited islands in this group (according to some other measurements, Baltrum is the smallest) and the only one that belonged to the historical district of Oldenburg between 1815 and 1947, whereas Borkum, Juist, Norderney, Baltrum, Langeoog and Spiekeroog always belonged to the county of Ostfriesland. As of the census of 2004, the island has 1,055 inhabitants. Especially in summer the island accommodates more than 7,000 visitors a day.