Anvik is a city, home to the Deg Hit'an people, in the Yukon-Koyukuk Census Area, Alaska, United States. The name Anvik, meaning "exit" in the Central Alaskan Yup'ik language, became the common usage despite multiple names at the time, and may have come from early Russian explorers. The native name in the Deg Xinag language is Deloy Ges. The population was 85 at the 2010 census, down from 104 in 2000.

Yukon–Koyukuk Census Area is a census area in the U.S. state of Alaska. As of the 2020 census, the population was 5,343, down from 5,588 in 2010. With an area of 147,842.51 sq mi (382,910.3 km2), it is the largest of any county or county-equivalent in the United States, or slightly larger than the entire state of Montana. It is part of the unorganized borough of Alaska and therefore has no borough seat. Its largest communities are the cities of Galena, in the west, and Fort Yukon, in the northeast.