| Martignas-sur-Jalle | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Martignas-sur-Jalle (Gironde).svg |
| Arrondissement: | Bordeaux |
| Canton: | Mérignac-2 |
| Intercommunality: | Bordeaux Métropole |
| Insee: | 33273 |
| Postal Code: | 33127 |
| Mayor: | Jérôme Pescina[1] |
| Term: | 2020 - 2026 |
| Coordinates: | 44.8417°N -0.7744°W |
| Elevation M: | 58 |
| Elevation Min M: | 22 |
| Elevation Max M: | 46 |
| Area Km2: | 26.39 |
Martignas-sur-Jalle (pronounced as /fr/; oc|Martinhàs de Jalas) is a commune in the Gironde department, Nouvelle-Aquitaine, southwestern France.
Historically, the town is known to have been the theater of the, where 500 to 600 longbowmen commanded by John Talbot were slaughtered by the French cavalry commanded by the Duke of Bourbon and the Count of Foix.