| Little Mashel River | |
| Pushpin Map: | Washington#USA |
| Pushpin Map Size: | 300 |
| Pushpin Map Caption: | Location of the mouth of the Little Mashel River in Washington |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Washington |
| Subdivision Type4: | County |
| Subdivision Name4: | Pierce County |
| Subdivision Type5: | City |
| Subdivision Name5: | Eatonville, Washington |
| Source1: | An unnamed lake |
| Source1 Location: | Cascade Range, Pierce County, Washington |
| Source1 Coordinates: | 46.7928°N -122.1478°W |
| Source1 Elevation: | 2830feet[1] |
| Mouth: | Mashel River |
| Mouth Location: | Near Eatonville, Washington, Pierce County |
| Mouth Coordinates: | 46.7928°N -122.1478°W |
| Mouth Elevation: | 710feet[2] |
The Little Mashel River is a river in Pierce County, Washington. It is a tributary of the Mashel River, and enters the Mashel just 380feet downstream from the Eatonville, Washington, city limits. It is noted for its canyon and the three waterfalls.
The Little Mashel begins in a small, unnamed lake located about 7.6miles southeast of Eatonville, Washington. Upon exiting the lake, the river, very small at this point, flows northeast for about 0.3miles before turning northwest for about 5.7miles, merging with South Fork Little Mashel River about 4.9miles along the way. There, the river briefly turns southwest, picks up the waters of its only named tributary, Midway Creek, and then turns northwest again. It flows that way for another 1.2miles or so until its confluence with the Mashel. A short canyon that sees the river drop over three large, often visited waterfalls lies about 0.6miles above its mouth.
The South Fork Little Mashel River begins about 1miles west of the lake the main fork begins in and flows northwest for about 4.1miles until it merges with the main fork of the Little Mashel not far upstream from where Midway Creek meets the Little Mashel.