| Mount Rainier Wilderness | |
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IUCN category Ib (wilderness area)
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| Location | Mount Rainier National Park, Washington, USA |
| Coordinates | 46°51′40″N 121°42′14″W / 46.86111°N 121.70389°WCoordinates: 46°51′40″N 121°42′14″W / 46.86111°N 121.70389°W |
| Area | 228,480 acres (924.6 km2) |
| Established | 1988 |
| Governing body | National Park Service |
Mount Rainier Wilderness is a designated wilderness area located within Mount Rainier National Park in the Cascade Range of western Washington, United States.