| Fransu | |
| Commune Status: | Commune |
| Arrondissement: | Amiens |
| Canton: | Flixecourt |
| Insee: | 80348 |
| Postal Code: | 80620 |
| Mayor: | Philippe Mauger[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Nièvre et Somme |
| Coordinates: | 50.1103°N 2.0942°W |
| Elevation M: | 113 |
| Elevation Min M: | 67 |
| Elevation Max M: | 122 |
| Area Km2: | 5.64 |
Fransu (in French pronounced as /fʁɑ̃sy/) is a commune in the Somme department in Hauts-de-France in northern France.
Fransu is situated 16miles east of Abbeville on the D130 and D66 road junction