| Guitrancourt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason Guitrancourt01.svg |
| Arrondissement: | Mantes-la-Jolie |
| Canton: | Limay |
| Insee: | 78296 |
| Postal Code: | 78440 |
| Mayor: | Patrick Daugé[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | CU Grand Paris Seine et Oise |
| Coordinates: | 49.0094°N 1.7778°W |
| Elevation M: | 161 |
| Elevation Min M: | 41 |
| Elevation Max M: | 192 |
| Area Km2: | 7.32 |
Guitrancourt (in French pronounced as /ɡitʁɑ̃kuʁ/) is a commune in the Yvelines department in the Île-de-France region in north-central France.
Philosopher Jacques Lacan owned a local mansion called Prévôté. He lived there from 1955 until his death in 1981 and was buried at the municipal cemetery.