| Western water rat | |
|---|---|
| Scientific classification | |
| Kingdom: | Animalia | 
| Phylum: | Chordata | 
| Class: | Mammalia | 
| Order: | Rodentia | 
| Family: | Muridae | 
| Genus: | Hydromys | 
| Species: | H. hussoni | 
| Binomial name | |
| Hydromys hussoni Musser & Piik, 1982 | |
The western water rat (Hydromys hussoni) is a species of rodent in the family Muridae. It is found in West Papua, Indonesia and Papua New Guinea. It is threatened by habitat loss.