The Asmat are an ethnic group of New Guinea, residing in the province of South Papua, Indonesia. The Asmat inhabit a region on the island's southwestern coast bordering the Arafura Sea, with lands totaling approximately 18,000 km2 (7,336 mi2) and consisting of mangrove, tidal swamp, freshwater swamp, and lowland rainforest.

South Papua, officially the South Papua Province, is an Indonesian province located in the southern portion of Papua, following the borders of the Papuan customary region of Anim Ha. Formally established on 11 November 2022 and including the four most southern regencies that were previously part of the province of Papua and before 11 December 2002 had comprised a larger Merauke Regency, it covers a land area of 129,715.02 km2, about the same area as Pennsylvania. This area had a population of 513,617 at the 2020 Census, while the official estimate as at mid 2023 was 537,973, making it the least populous province in Indonesia.