Wallis is a Polynesian atoll/island in the Pacific Ocean belonging to the French overseas collectivity of Wallis and Futuna. It lies north of Tonga, northeast of Fiji, east-northeast of the Hoorn Islands, east of Fiji's Rotuma, southeast of Tuvalu, southwest of Tokelau and west of Samoa. Its area is almost 100 km2 (39 sq mi) with 8,333 people. Its capital is Mata Utu. Roman Catholicism is the predominant religion. Its highest point is Mount Lulu Fakahega. Wallis is of volcanic origin with fertile soil and some remaining lakes. Rainfall is plentiful.

Wallis and Futuna, officially the Territory of the Wallis and Futuna Islands, is a French island collectivity in the South Pacific, situated between Tuvalu to the northwest, Fiji to the southwest, Tonga to the southeast, Samoa to the east, and Tokelau to the northeast.