| Le Plessier-Rozainvillers | |
| Commune Status: | Commune |
| Arrondissement: | Montdidier |
| Canton: | Moreuil |
| Insee: | 80628 |
| Postal Code: | 80110 |
| Mayor: | André Lescureux[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Avre Luce Noye |
| Coordinates: | 49.7508°N 2.5539°W |
| Elevation M: | 103 |
| Elevation Min M: | 53 |
| Elevation Max M: | 109 |
| Area Km2: | 10.17 |
Le Plessier-Rozainvillers is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated on the D137 and D54 crossroads, 32km (20miles) southeast of Amiens.