| Little Niangua River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | United States |
| Subdivision Type2: | State |
| Subdivision Name2: | Missouri |
| Length: | 64miles |
| Discharge1 Location: | USGS 06925250 near Macks Creek, MO[1] |
| Discharge1 Min: | 0cuft/s |
| Discharge1 Avg: | 150cuft/s |
| Discharge1 Max: | 6730cuft/s |
| Source1 Location: | Dallas County, Missouri |
| Source1 Coordinates: | 37.7486°N -93.0208°W |
| Source1 Elevation: | 1179feet |
| Mouth: | Lake of the Ozarks |
| Mouth Location: | Camden County, Missouri |
| Mouth Coordinates: | 38.0714°N -92.9067°W |
| Mouth Elevation: | 663feet |
| Basin Size: | 320sqmi |
| Custom Label: | Watersheds |
| Custom Data: | Little Niangua-Niangua-Osage-Missouri-Mississippi |
The Little Niangua River is a 64.4adj=midNaNadj=mid[2] tributary of the Niangua River in the Ozarks region of central Missouri in the United States. Via the Niangua, Osage and Missouri rivers, it is part of the watershed of the Mississippi River. The Little Niangua was so named for its smaller size relative to the Niangua River.[3]
The Little Niangua rises in Dallas County and flows generally northeasterly through Hickory and Camden counties. It joins the Niangua River in Camden County as an arm of the Lake of the Ozarks, which is formed by a dam on the Osage River.[4]
The upper reaches of the Little Niangua River, including the tributaries of Cahoochie Creek and Thomas Creek in Dallas County, are known habitats of the Niangua darter, a small fish that is on the U.S. Fish and Wildlife Service's list of Endangered Species.
There are multiple river accesses on the Little Niangua River, including Bannister Hollow, Fiery Fork and most areas where a road crosses the river.