Mamarchev Peak (Bulgarian: Мамарчев връх, romanized: Mamarchev vrah, IPA: [mɐˈmart͡ʃɛv ˈvrɤx]) is the peak with tween heights both rising to 2,403 m (7,884 ft) in the north part of Sullivan Heights in central Sentinel Range in Ellsworth Mountains, Antarctica, and surmounting Pulpudeva Glacier to the west and Ellen Glacier to the north.

The peak is named after Georgi Mamarchev (1786–1846), leader of the Bulgarian liberation movement, in connection with the settlement of Mamarchevo in Southern Bulgaria.

Mamarchev Peak is located at 78°18′49″S 85°08′54″W / 78.31361°S 85.14833°W / -78.31361; -85.14833, which is 2.37 km (1.47 mi) northwest of Mount Levack, 10.9 km east-northeast of Mount Bearskin, 11.08 km (6.88 mi) southeast of Mount Jumper and 5.28 km (3.28 mi) south of Roberts Peak. US mapping in 1961, updated in 1988.

• Mountains in Antarctica

• Vinson Massif. Scale 1:250 000 topographic map. Reston, Virginia: US Geological Survey, 1988.
• Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly updated.

• Mamarchev Peak. SCAR Composite Antarctic Gazetteer
• Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission (in Bulgarian)
• Basic data (in English)

• Mamarchev Peak. Copernix satellite image

This article includes information from the Antarctic Place-names Commission of Bulgaria which is used with permission.