Les Deux Frères, Mountain summit in Kerguelen Islands, French Southern and Antarctic Lands.

Les Deux Frères is a 500-metre summit in the southern part of the Kerguelen Islands, French Southern and Antarctic Lands. The site lies in a glacial and volcanic landscape where the surrounding terrain is mostly covered by tundra vegetation. No settlement stands nearby, and fewer than two people live per square kilometre in the area.

The summit formed through the same geological processes that shaped the Kerguelen Islands, driven by volcanic and tectonic activity over millions of years. Its current shape has been refined by centuries of erosion and weathering in the subantarctic environment.

Les Deux Frères rises to 500 metres in the southern part of the Kerguelen Islands. Its slopes are covered with tundra vegetation, and the surrounding area has fewer than two inhabitants per square kilometre, with no town nearby. The name, meaning "The Two Brothers", refers to the mountain's twin peaks.

Access to the summit requires special permits and advance arrangements, as the Kerguelen Islands operate under strict environmental protection measures. Visits must be coordinated with authorities and visitors should plan accordingly for the remote location.

Les Deux Frères rises to 500 metres, while the highest ground within 3.4 km to the east reaches 834 metres. Fewer than two people live per square kilometre around it, and no town stands anywhere nearby; the surrounding land is used as pasture.