Heidemann Bay (68°35′S 77°58′E / 68.583°S 77.967°E / -68.583; 77.967) is a bay, 1 nautical mile (2 km) long, indenting the seaward end of Breidnes Peninsula in the Vestfold Hills of Antarctica, just south of Davis Station.
It was mapped by Norwegian cartographers from air photos taken by the Lars Christensen Expedition, 1936–37.
The bay was first visited by an Australian National Antarctic Research Expeditions party from the Kista Dan on January 11, 1957, and was named for Frank Heidemann, second mate of the Kista Dan.
[1] Heidemann Bay which was gouged by glaciers is flanked by two small peninsulas which rise approximately 20 metres above sea level.
Heidemann Valley is of uniform elevation and relatively flat but covered in a large number of moraine rocks and boulders.