| Larch Mountain | |
| Elevation Ft: | 3452 |
| Elevation Ref: | [1] |
| Prominence Ft: | 344 |
| Map: | Oregon#USA |
| Map Size: | 240 |
| Coordinates: | 45.6593°N -123.4271°W |
| Coordinates Ref: | [2] |
| Location: | Washington County. Oregon, U.S. |
| Range: | Northern Oregon Coast Range |
| Topo: | USGS Cochran |
Larch Mountain is a mountain in the Northern Oregon Coast Range in Washington County, Oregon, United States. It is the second highest peak in the county with an elevation of 3,452 ft (1,052 m.) It is located near Timber, on Oregon Route 6.