| Saint-Aubin-Château-Neuf | |
| Coordinates: | 47.8244°N 3.3106°W |
| Insee: | 89334 |
| Postal Code: | 89110 |
| Arrondissement: | Auxerre |
| Canton: | Charny Orée de Puisaye |
| Commune: | Le Val-d'Ocre |
| Elevation Min M: | 135 |
| Elevation Max M: | 262 |
| Area Km2: | 24.89 |
| Population: | 505 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Saint-Aubin-Château-Neuf (in French pronounced as /sɛ̃.t‿obɛ̃ ʃato nœf/) is a former commune in the Yonne department in Bourgogne-Franche-Comté in north-central France. On 1 January 2016, it was merged into the new commune of Le Val-d'Ocre.[2]