Bosporos Planum is a high plateau (planum) located in the Thaumasia quadrangle in the Southern Hemisphere of Mars.

It is about 730 km long stretching from southwest to northeast.

Previously named Erythraeum Planum,[1] it was renamed to its current name in 1979.

[2] Its name derives from one of the classical albedo features observed by early astronomers, named after the Bosphorus Strait.

[2] This article about geology, geography or other features of the planet Mars or its moons is a stub.