Hisarya Cove (Bulgarian: залив Хисаря, romanized: zaliv Hisarya, IPA: [ˈzalif xiˈsarʲɐ]) is the 950 m wide cove on the northwest side of Osmar Strait indenting for 500 m the southeast coast of Smith Island in the South Shetland Islands, Antarctica south of Dupnitsa Point and 7.6 km northeast of Cape James. Its head is fed by Letnitsa Glacier. Bulgarian early mapping in 2009.
The cove is named after the town of Hisarya in southern Bulgaria.