The Arctowski Peninsula (64°45′S 62°25′W / 64.750°S 62.417°W / -64.750; -62.417) is a peninsula, 15 miles (24 km) long in a north-south direction, lying between Andvord Bay and Wilhelmina Bay on the west coast of Graham Land. It was discovered by the Belgian Antarctic Expedition, 1897–99, under Adrien de Gerlache. The name, for Henryk Arctowski of that expedition, was suggested by the Advisory Committee on Antarctic Names for this previously unnamed feature.^[1]

Its north tip is Cape Anna, a prominent black cape rising to 280 m. It is immediately west of Anna Cove, located 1 mile (1.6 km) west of Louise Island and the entrance to Hugershoff Cove, and 2.3 miles (3.7 km) northeast of Mount Fourcade. It was named after Mme. Ernest (Anna) Osterrieth, who gave financial assistance to the Gerlache expedition.^[2]