Borda Rock (Bulgarian: скала Борда, romanized: skala Borda, IPA: [skɐˈla borˈda]) is the rock off the NW coast of Smith Island in the South Shetland Islands, Antarctica 270 m long in southwest-northeast direction and 90 m wide (extending 543 by 175 m together with the adjacent minor rocks).

The vicinity was visited by early 19th century sealers.

[1] The feature is named after Jean-Charles de Borda (1733-1799), a French mathematician, physicist and Navy officer who refined the reflecting circle; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.

Borda Rock is located at 62°55′01.6″S 62°32′15″W / 62.917111°S 62.53750°W / -62.917111; -62.53750,[2] which is 240 m northwest of Gregory Point.

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