| Niemur River | |
| Subdivision Type1: | Country |
| Subdivision Name1: | Australia |
| Subdivision Type2: | State |
| Subdivision Name2: | New South Wales |
| Subdivision Type3: | Region |
| Subdivision Name3: | IBRA |
| Subdivision Type4: | District |
| Subdivision Name4: | Riverina |
| Subdivision Type5: | Municipalities |
| Subdivision Name5: | Murray, Deniliquin, Wakool |
| Length: | 155km (96miles) |
| Source1: | Edward River |
| Source1 Location: | near Moonahcullah |
| Source1 Elevation: | 92m (302feet) |
| Mouth: | confluence with the Wakool River |
| Mouth Location: | north of Swan Hill |
| Mouth Elevation: | 63m (207feet) |
| River System: | Murray River, Murray–Darling basin |
| Extra: | [1] |
Niemur River, a perennial stream of the Murray catchment and part of the Murray–Darling basin, is located in the western Riverina region of south western New South Wales, Australia.
The river leaves Edward River, near Moonahcullah, flowing generally west north-west, joined by five minor tributaries, before reaching its confluence with the Wakool River, north of Swan Hill; descending over its course.[1]