| Simms Rock | |
| Map: | Antarctica#South Shetland Islands |
| Map Relief: | yes |
| Location: | Antarctica |
| Coordinates: | -62.5385°N -60.4697°W |
| Archipelago: | South Shetland Islands |
| Area Ha: | 0.42 |
| Length M: | 134 |
| Width M: | 65 |
| Population: | uninhabited |
| Country: | None |
| Treaty System: | Antarctic Treaty |
Simms Rock (bg|скала Симс|skala Simms, pronounced as /bg/) 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.
Simms Rock is located in Hero Bay at -62.5385°N -60.4697°W,[2] which is 1.85 km west-northwest of Siddins Point, 8 km east-northeast of Avitohol Point and 10 km southwest of Desolation Island. Bulgarian mapping in 2009 and 2017.