| Nieudan | |
| Commune Status: | Commune |
| Arrondissement: | Aurillac |
| Canton: | Saint-Paul-des-Landes |
| Insee: | 15143 |
| Postal Code: | 15150 |
| Mayor: | Gérard Troupel[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.9847°N 2.2439°W |
| Elevation M: | 496 |
| Elevation Min M: | 479 |
| Elevation Max M: | 626 |
| Area Km2: | 12.4 |
Nieudan (pronounced as /fr/; oc|Nuòudòm) is a commune in the département of Cantal in south-central France.