| Lanches-Saint-Hilaire | |
| Commune Status: | Commune |
| Arrondissement: | Amiens |
| Canton: | Flixecourt |
| Insee: | 80466 |
| Postal Code: | 80620 |
| Mayor: | Jean-Luc Waligora[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Nièvre et Somme |
| Coordinates: | 50.1042°N 2.1403°W |
| Elevation M: | 76 |
| Elevation Min M: | 48 |
| Elevation Max M: | 136 |
| Area Km2: | 5.45 |
Lanches-Saint-Hilaire (in French pronounced as /lɑ̃ʃ sɛ̃.t‿ilɛʁ/; Lanche-Saint-Hilaire) is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated on the D118e road, some 15miles east of Abbeville.