| Maisoncelles-sur-Ajon | |
| Commune Status: | Commune |
| Arrondissement: | Vire |
| Canton: | Les Monts d'Aunay |
| Insee: | 14390 |
| Postal Code: | 14210 |
| Mayor: | Pierre Dewasne[1] |
| Term: | 2020 - 2026 |
| Intercommunality: | Pré-Bocage Intercom |
| Coordinates: | 49.0547°N -0.5375°W |
| Elevation M: | 150 |
| Elevation Min M: | 94 |
| Elevation Max M: | 196 |
| Area Km2: | 4.24 |
Maisoncelles-sur-Ajon (in French pronounced as /mɛzɔ̃sɛl syʁ aʒɔ̃/) is a commune in the Calvados department in the Normandy region in northwestern France.