Troughton Rocks (Bulgarian: скали Трутън, romanized: skali Troughton, IPA: [skɐˈli ˈtrutən]) are the group of rocks off the northwest extremity of Snow Island in the South Shetland Islands, Antarctica lying in an aquatory of 27 ha that is 315 m long in east-west direction and 120 m wide.

[1] The feature is named after Edward Troughton (1753-1835), a British instrument maker who improved the theodolite design; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.

Troughton Rocks are centred at 62°44′42″S 61°33′23″W / 62.74500°S 61.55639°W / -62.74500; -61.55639,[2] which is 2.7 km west-northwest of Byewater Point.

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

This Snow Island location article is a stub.