| Derval | |
| Native Name: | (Gallo) |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Derval (Loire-Atlantique).svg |
| Arrondissement: | Châteaubriant-Ancenis |
| Canton: | Guémené-Penfao |
| Insee: | 44051 |
| Postal Code: | 44590 |
| Mayor: | Dominique David[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Châteaubriant-Derval |
| Coordinates: | 47.6683°N -1.67°W |
| Elevation Min M: | 8 |
| Elevation Max M: | 77 |
| Area Km2: | 63.51 |
Derval (in French pronounced as /dɛʁval/; Gallo: Derva, Breton: Derwal) is a commune in the Loire-Atlantique department in western France.
The river Chère forms all of the commune's northern border.
Derval is twinned with Llanidloes, a small town in Wales.