| Ailloncourt | |
| Commune Status: | Commune |
| Image Coat Of Arms: | Blason ville fr Ailloncourt (Haute-Saône).svg |
| Coordinates: | 47.7561°N 6.3889°W |
| Insee: | 70007 |
| Postal Code: | 70300 |
| Arrondissement: | Lure |
| Canton: | Luxeuil-les-Bains |
| Mayor: | Véronique Ambert-Grandjean[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Triangle Vert |
| Elevation Min M: | 264 |
| Elevation Max M: | 450 |
| Area Km2: | 9.29 |
Ailloncourt (in French pronounced as /ajɔ̃kuʁ/) is a commune in the Haute-Saône department in the region of Bourgogne-Franche-Comté in eastern France.