| Blangy-sous-Poix | |
| Commune Status: | Commune |
| Arrondissement: | Amiens |
| Canton: | Poix-de-Picardie |
| Insee: | 80106 |
| Postal Code: | 80290 |
| Mayor: | Alain Lesur[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CC Somme Sud-Ouest |
| Coordinates: | 49.7672°N 2.0031°W |
| Elevation M: | 99 |
| Elevation Min M: | 85 |
| Elevation Max M: | 189 |
| Area Km2: | 8.01 |
Blangy-sous-Poix (in French pronounced as /blɑ̃ʒi su pwa/, literally Blangy under Poix; Picard: Blangy-dsou-Poé) is a commune in the Somme department in Hauts-de-France in northern France.
The commune is situated 23miles southwest of Amiens on the D262 road.