| Chailly-en-Gâtinais | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Chailly-en-Gâtinais (Loiret).svg |
| Arrondissement: | Montargis |
| Canton: | Lorris |
| Insee: | 45066 |
| Postal Code: | 45260 |
| Mayor: | Hervé Vasseur[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Canaux et Forêts en Gâtinais |
| Coordinates: | 47.9486°N 2.5436°W |
| Elevation Min M: | 95 |
| Elevation Max M: | 121 |
| Area Km2: | 18.37 |
Chailly-en-Gâtinais (in French pronounced as /ʃaji ɑ̃ ɡɑtinɛ/; literally 'Chailly in Gâtinais') is a commune in the Loiret department in north-central France.