Simms Rock (Bulgarian: скала Симс, romanized: skala Simms, IPA: [skɐˈla ˈsims]) is the rock off the north coast of Livingston Island in the South Shetland Islands, Antarctica 134 m long in southeast–northwest direction and 65 m wide, with a surface area of 0.42 ha.

The vicinity was visited by early 19th century sealers.

[1] The feature is named after William Simms (1793-1860), 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.

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

This Livingston Island location article is a stub.