| Castellnou de Peramea | |
| Official Name: | Castellnou |
| Settlement Type: | Locality |
| Pushpin Map: | Spain Province of Lleida#Spain Catalonia#Spain |
| Pushpin Label: | Castellnou de Peramea |
| Pushpin Label Position: | left |
| Subdivision Type: | Country |
| Subdivision Type1: | Community |
| Subdivision Type2: | Province |
| Subdivision Name2: | Lleida |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Baix Pallars |
| Population Total: | 1 |
| Coordinates: | 42.3239°N 1.1467°W[1] |
| Elevation M: | 1602 |
| Postal Code Type: | Postal code |
Castellnou de Peramea or Castellnou is a locality located in the municipality of Baix Pallars, in Province of Lleida province, Catalonia, Spain. As of 2020, it has a population of 1.[2]
Castellnou de Peramea is located 136km north-northeast of Lleida.