Loup Loup Pass (el. 4020 ft./1225 m.) is a mountain pass in the Cascades in the state of Washington.
| Loup Loup Pass | |
|---|---|
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| Elevation | 4,020 ft (1,225 m) |
| Traversed by | State Route 20 |
| Location | Okanogan County, Washington, United States |
| Range | Cascades |
| Coordinates | 48°23′12″N 119°53′40″W / 48.3867°N 119.8945°W |
 Interactive map of Loup Loup Pass | |
It is located east of the Methow Valley of Okanogan County, between the towns of Twisp and Okanogan on State Route 20. A small ski area is located at the pass.