Foros Spur (Bulgarian: рид Форос, ‘Rid Foros’ \'rid 'fo-ros\) is the 7.5 km long and 5.7 km wide rocky ridge forming the southeast extremity of Gromshin Heights on the east side of northern Sentinel Range in Ellsworth Mountains, Antarctica. It surmounts Rutford Ice Stream to the east and lower Vicha Glacier to the west.
The feature is named after Foros Point on the Bulgarian Black Sea Coast.