St. Sofroniy Knoll (Bulgarian: Св. Софрониева могила, ‘Sv. Sofronieva Mogila’ \ sve-'ti so-'fro-ni-e-va mo-'gi-la\) is the hill rising to 107 m on the small ice-free peninsula of President Head in the northeast extremity of Snow Island in the South Shetland Islands, Antarctica. It is situated 1.3 km southwest of the extreme northeast point of the peninsula, and overlooks Calliope Beach on the west-northwest and Oeagrus Beach on the west.