The Wandel Sea (Danish: Wandelhavet; also known as McKinley Sea[2]) is a body of water in the Arctic Ocean, stretching from northeast of Greenland to Svalbard.

This sea is named after Danish polar explorer and hydrographer, Vice Admiral Carl Frederick Wandel, who in the years 1895–96 explored the coastal waters of Greenland as part of the Danish Ingolf Expedition.

[3] This arctic sea is located at 82° north longitude and 21° west latitude.

Seas farther north and northwest of the Wandel Sea were once frozen year-round but now may have open water in late summer, as of August 2018.

[4] The Wandel Sea stretches westward as far as Cape Morris Jesup.