| Domvast | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Domvast (Somme).svg |
| Arrondissement: | Abbeville |
| Canton: | Abbeville-1 |
| Insee: | 80250 |
| Postal Code: | 80150 |
| Mayor: | Michel Gayet[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Ponthieu-Marquenterre |
| Coordinates: | 50.1972°N 1.922°W |
| Elevation M: | 80 |
| Elevation Min M: | 39 |
| Elevation Max M: | 83 |
| Area Km2: | 12.85 |
Domvast (Picard: Donvo) is a commune in the Somme department in Hauts-de-France in northern France.
Domvast is situated on the D12 road, some 8miles northeast of Abbeville.