| Tessancourt-sur-Aubette | |
| Commune Status: | Commune |
| Arrondissement: | Mantes-la-Jolie |
| Canton: | Les Mureaux |
| Insee: | 78609 |
| Postal Code: | 78250 |
| Mayor: | Paulette Favrou[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Paris Seine et Oise |
| Coordinates: | 49.0253°N 1.9211°W |
| Elevation M: | 74 |
| Elevation Min M: | 25 |
| Elevation Max M: | 140 |
| Area Km2: | 4.36 |
Tessancourt-sur-Aubette (in French pronounced as /tɛsɑ̃kuʁ syʁ obɛt/, literally Tessancourt on Aubette) is a commune in the Yvelines department in the Île-de-France region in north-central France.