| Fontaine-sur-Somme | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Fontaine-sur-Somme 80.svg |
| Arrondissement: | Abbeville |
| Canton: | Gamaches |
| Insee: | 80328 |
| Postal Code: | 80510 |
| Mayor: | Stéphane Deloison[1] |
| Term: | 2021 - 2026 |
| Intercommunality: | CA Baie de Somme |
| Coordinates: | 50.0306°N 1.9397°W |
| Elevation M: | 11 |
| Elevation Min M: | 7 |
| Elevation Max M: | 102 |
| Area Km2: | 15.18 |
Fontaine-sur-Somme (pronounced as /fr/, literally Fontaine on Somme; pcd|Fontainne-su-Sonme) is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated on the D3 road, some 10miles southeast of Abbeville on the left bank of the river Somme.