| Vitz-sur-Authie | |
| Commune Status: | Commune |
| Arrondissement: | Abbeville |
| Canton: | Rue |
| Insee: | 80810 |
| Postal Code: | 80150 |
| Mayor: | Michel Van Elslander[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Ternois |
| Coordinates: | 50.2536°N 2.0664°W |
| Elevation M: | 28 |
| Elevation Min M: | 22 |
| Elevation Max M: | 94 |
| Area Km2: | 4.66 |
Vitz-sur-Authie is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated 16miles northeast of Abbeville, on the D121 road and on the border with the Pas-de-Calais department.
Also known as Vitz-lès-Willancourt, the commune was once the seigneurie of the d'Abbeville family.