| Frasne-le-Château | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Frasne-le-Château 70.svg |
| Coordinates: | 47.4636°N 5.8944°W |
| Insee: | 70253 |
| Postal Code: | 70700 |
| Arrondissement: | Vesoul |
| Canton: | Scey-sur-Saône-et-Saint-Albin |
| Mayor: | Claude Springaux[1] |
| Term: | 2020 - 2026 |
| Elevation Min M: | 236 |
| Elevation Max M: | 375 |
| Area Km2: | 12.50 |
Frasne-le-Château (in French pronounced as /fʁɑn lə ʃɑto/) is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France.