| Igny | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason d'Igny.svg |
| Coordinates: | 48.7421°N 2.2261°W |
| Insee: | 91312 |
| Postal Code: | 91430 |
| Arrondissement: | Palaiseau |
| Canton: | Palaiseau |
| Intercommunality: | CA Paris-Saclay |
| Mayor: | Francisque Vigouroux[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 62 |
| Elevation Max M: | 154 |
| Area Km2: | 3.82 |
Igny (in French pronounced as /iɲi/) is a commune in the Essonne department in Île-de-France in northern France.
Inhabitants of Igny are known as Ignissois in French.