Cape Vostok () is a rocky mass which forms the west extremity of the Havre Mountains and the northwest extremity of Alexander Island. First seen by the Russian expedition of 1821 under Bellingshausen. Mapped in detail from air photos taken by the Ronne Antarctic Research Expedition (RARE), 1947–48, by Searle of the Falkland Islands Dependencies Survey (FIDS) in 1960. Named by the United Kingdom Antarctic Place-Names Committee (UK-APC) for the sloop Vostok, commanded by Bellingshausen.
This article incorporates public domain material from the United States Geological Survey document "Cape Vostok" (content from the Geographic Names Information System).