Odometer Rock (Bulgarian: скала Одометър, romanized: skala Odometer, IPA: [skɐˈla odoˈmɛtər]) is the rock off the NW coast of northwest coast of Nelson Island in the South Shetland Islands, Antarctica extending 40 m in west–east direction and 30 m in south–north direction. Its surface area is 0.07 ha. The vicinity was visited by early 19th century sealers.

The feature is named after the surveying instrument odometer used for measuring the distance traveled by a vehicle; in association with other names in the area deriving from the early development or use of geodetic instruments and methods.

Odometer Rock is located at 62°15′04.2″S 59°11′15.2″W / 62.251167°S 59.187556°W / -62.251167; -59.187556, which is 1.68 km north of Smilets Point, 2.58 km northeast of Folger Rock and 2.3 km west of Retamales Point. British mapping in 1968.

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