| Official Name: | Ñirihuau |
| Settlement Type: | Municipality and village |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Argentina |
| Subdivision Name1: | Río Negro Province |
| Subdivision Type2: | Department |
| Subdivision Name2: | Pilcaniyeu |
| Unit Pref: | Imperial |
| Population As Of: | 2001 INDEC |
| Population Total: | 125 |
| Timezone: | ART |
| Utc Offset: | -3 |
| Elevation M: | 703 |
| Postal Code Type: | Postcode |
| Postal Code: | R8400 |
| Area Code: | 02940 |
Ñirihuau is a village and municipality in Río Negro Province in Argentina.[1]