| Montarlot | |
| Coordinates: | 48.35°N 2.8499°W |
| Insee: | 77299 |
| Postal Code: | 77250 |
| Arrondissement: | Fontainebleau |
| Canton: | Montereau-Fault-Yonne |
| Commune: | Moret-Loing-et-Orvanne |
| Elevation Min M: | 55 |
| Elevation Max M: | 107 |
| Area Km2: | 5.21 |
| Population: | 251 |
| Population Date: | 2019 |
| Population Footnotes: | [1] |
Montarlot (pronounced as /fr/) is a former commune in the Seine-et-Marne department in the Île-de-France region in north-central France. On 1 January 2016 it was merged into the new commune of Moret-Loing-et-Orvanne.[2]