| Gandelu | |
| Commune Status: | Commune |
| Arrondissement: | Château-Thierry |
| Canton: | Villers-Cotterêts |
| Insee: | 02339 |
| Postal Code: | 02810 |
| Mayor: | Bernard Canessa[1] |
| Term: | 2022 - 2026 |
| Intercommunality: | CA Région de Château-Thierry |
| Coordinates: | 49.0956°N 3.1839°W |
| Elevation M: | 77 |
| Elevation Min M: | 68 |
| Elevation Max M: | 166 |
| Area Km2: | 10.03 |
Gandelu (in French pronounced as /ɡɑ̃dly/) is a commune in the Aisne department in Hauts-de-France in northern France. It belongs to the arrondissement of Château-Thierry and to the canton of Villers-Cotterêts.