List of largest wilderness areas in the United States

This is a list of the largest wilderness areas in the National Wilderness Preservation System of the United States. It includes all that are larger than 50,000 acres (200 km²). Statistics are as retrieved in September 2009 from Wilderness.net. Where instances of multiple states or agencies occur, they are listed in descending order of included acreage. The last column lists the entities that the wilderness is entirely (in most cases) part of, or partially included in (minority of cases, usually involving parts of the wilderness that are in otherwise unnamed BLM lands). They are also listed in descending order of included acreage. Agency abbreviations: BLM = Bureau of Land Management; FS = Forest Service; FWS = Fish and Wildlife Service; NPS = National Park Service.