Chavdar Peninsula (64°05′25″S 60°52′45″W / 64.09028°S 60.87917°W / -64.09028; -60.87917 (Chavdar Peninsula)) is a 10 kilometres (6.2 mi) wide peninsula projecting 13 kilometres (8.1 mi) in northwest direction from Graham Land on the Antarctic Peninsula in Antarctica.

Chavdar Peninsula lies on the west coast of the Antarctic Peninsula. It is bounded by Curtiss Bay to the northeast, Hughes Bay to the southwest and Gerlache Strait to the northwest. Its west extremity Cape Sterneck separates Danco Coast to the southwest and Davis Coast to the northeast.

Chavdar Peninsula is named for the 16th-century Bulgarian rebel leader Chavdar Voyvoda.

Features and nearby features include:

64°04′S 61°02′W / 64.067°S 61.033°W / -64.067; -61.033. A bold, black cliff on a projecting point of land forming the north side of the entrance to Hughes Bay. In 1898, the Belgian Antarctic Expedition (BelgAE) under Lieutenant Adrien de Gerlache explored this area and named this cape for the German geophysicist Robert von Sterneck whose apparatus was used on the expedition. The cape is called Cape Herschel by the British, after Sir John Herschel (1792-1871), British astronomer and member of the Royal Society Committee which prepared instructions for the voyage of Foster's ship HMS Chanticleer, 1828-31.

64°01′S 60°57′W / 64.017°S 60.950°W / -64.017; -60.950. A group of rocks lying 4 nautical miles (7.4 km; 4.6 mi) northeast of Cape Sterneck in the entrance to Curtiss Bay, northern Graham Land. Roughly charted and given this descriptive name by James Hoseason, First Mate of the sealer Sprightly in 1824.

64°05′S 61°18′W / 64.083°S 61.300°W / -64.083; -61.300. A rock lying in Gerlache Strait, 7 nautical miles (13 km; 8.1 mi) west-southwest of Cape Sterneck. Named by the BelgAE (1897–99) under Lieutenant Adrien de Gerlache for Argentine scientist and statesman Francisco Moreno.

64°04′50″S 60°55′00″W / 64.08056°S 60.91667°W / -64.08056; -60.91667 An ice cap covering the western half of Chavdar Peninsula. Situated west of Samodiva Glacier, and extending 7.7 kilometres (4.8 mi) in E-W direction and 4 kilometres (2.5 mi) in N-S direction. Draining both northwards into Curtiss Bay and southwards into Hughes Bay. British mapping in 1978. Named after the peak of Tumba in Belasitsa Mountain, Southwestern Bulgaria.

64°05′30″S 60°49′30″W / 64.09167°S 60.82500°W / -64.09167; -60.82500 A 3.7 kilometres (2.3 mi) long and 1.8 kilometres (1.1 mi) wide glacier in the east part of Chavdar Peninsula, draining north-northeastwards east of Mount Pénaud to enter Curtiss Bay west of Seaplane Point. Named after the settlement of Samodiva in Southern Bulgaria.

64°05′30″S 60°43′00″W / 64.09167°S 60.71667°W / -64.09167; -60.71667 A 5.7 kilometres (3.5 mi) long and 6 kilometres (3.7 mi) wide glacier situated next east of Chavdar Peninsula. Draining north-northwestwards to enter the head of Curtiss Bay east of Seaplane Point. Named after Pirin Mountain in Southwestern Bulgaria.

64°08′S 60°48′W / 64.133°S 60.800°W / -64.133; -60.800. Glacier flowing into Cierva Cove north of Breguet Glacier, on the west coast of Graham Land. Shown on an Argentine government chart of 1957. Named by the UK-APC in 1960 for H. Franklin Gregory, American pioneer in the development and use of helicopters.

64°06′00″S 60°52′00″W / 64.10000°S 60.86667°W / -64.10000; -60.86667 A mountain rising to about 1,050 metres (3,440 ft) east-southeast of Cape Herschel, Danco Coast, was roughly charted by Henry Foster in January 1829 and called Mount Herschel after Sir John Herschel (see #Cape Sterneck). The mountain was photographed from the air by FIDASE, 1956-57. In association with the names of pioneers of aviation grouped in this area, named Mount Pénaud after Alphonse Pénaud (1850–80), French aircraft designer, 1871–80.

64°08′20″S 60°40′30″W / 64.13889°S 60.67500°W / -64.13889; -60.67500 A mostly ice-covered range extending 24.7 kilometres (15.3 mi) in SE-NW direction and 10 kilometres (6.2 mi) wide, rising to 1,771 metres (5,810 ft) high in the northwest foothills of Detroit Plateau and partly on Chavdar Peninsula, on the border between Davis Coast and Danco Coast in Graham Land. Connected to Perkos Dome to the southeast by Sinitovo Gap. Surmounts Breguet Glacier to the south, Gregory Glacier to the southwest, Tumba Ice Cap, Samodiva Glacier and Pirin Glacier to the north, and Wright Ice Piedmont to the northeast. Named after the ancient fortress of Kaliva in Southeastern Bulgaria.

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