Ritchie Rock (Bulgarian: скала Ричи, romanized: skala Ritchie, IPA: [skɐˈla ˈrit͡ʃi]) is the conspicuous rock off the southwest coast of Snow Island in the South Shetland Islands, Antarctica extending 80 m in south–north direction and 73 m in west–east direction, with a surface area of 0.17 ha. The vicinity was visited by early 19th century sealers.

The feature is named after Edward Samuel Ritchie (1814–1895), an American inventor and physicist who created a waterborne version of the theodolite used in harbour surveys; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.

Ritchie Rock is located at 62°51′03″S 61°22′35.5″W / 62.85083°S 61.376528°W / -62.85083; -61.376528, which is 2.6 km east-northeast of Tooth Rock, 2.84 km east-southeast of Cape Conway and 1.82 km south-southeast of Pazardzhik Point. Bulgarian mapping in 2009.

• List of Antarctic and subantarctic islands

• South Shetland Islands. Scale 1:200000 topographic map. DOS 610 Sheet W 62 60. Tolworth, UK, 1968
• L. Ivanov. Antarctica: Livingston Island and Greenwich, Robert, Snow and Smith Islands. Scale 1:120000 topographic map. Troyan: Manfred Wörner Foundation, 2010. ISBN 978-954-92032-9-5 (First edition 2009. ISBN 978-954-92032-6-4)
• Antarctic Digital Database (ADD). Scale 1:250000 topographic map of Antarctica. Scientific Committee on Antarctic Research (SCAR). Since 1993, regularly upgraded and updated

• Bulgarian Antarctic Gazetteer. Antarctic Place-names Commission. (details in Bulgarian, basic data in English)

• Ritchie Rock. Adjusted Copernix satellite image

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