| Carnoy-Mametz | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason de la ville de Lynde (59) Nord-France.svg |
| Arrondissement: | Péronne |
| Canton: | Albert |
| Insee: | 80505 |
| Postal Code: | 80300 |
| Mayor: | Stéphane Brunel[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pays du Coquelicot |
| Coordinates: | 49.9978°N 2.7369°W |
| Elevation M: | 73 |
| Elevation Min M: | 68 |
| Elevation Max M: | 135 |
| Area Km2: | 10.25 |
Carnoy-Mametz (in French pronounced as /kaʁnwa mame/) is a commune in the Somme department in Hauts-de-France in northern France. It was established on 1 January 2019 by merger of the former communes of Mametz (the seat) and Carnoy.[2]