| La Chapelle-Montmartin | |
| Commune Status: | Commune |
| Arrondissement: | Romorantin-Lanthenay |
| Canton: | Selles-sur-Cher |
| Insee: | 41038 |
| Postal Code: | 41320 |
| Mayor: | Anne-Laure Chevalier[1] |
| Term: | 2023 - 2026 |
| Intercommunality: | Romorantinais et Monestois |
| Coordinates: | 47.2711°N 1.7406°W |
| Elevation M: | 124 |
| Elevation Min M: | 82 |
| Elevation Max M: | 152 |
| Area Km2: | 10.72 |
La Chapelle-Montmartin (in French pronounced as /la ʃapɛl mɔ̃maʁtɛ̃/) is a commune in the Loir-et-Cher department in central France.[2]