| Official Name: | Marotsialeha |
| Pushpin Map: | Madagascar |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Madagascar |
| Pushpin Mapsize: | 180 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Melaky |
| Subdivision Type2: | District |
| Subdivision Name2: | Ambatomainty District |
| Population As Of: | 2018 |
| Population Footnotes: | Census |
| Population Total: | 6,559 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -17.7833°N 68°W |
| Postal Code Type: | Postal code |
| Postal Code: | 404 |
Marotsialeha is a rural municipality in western Madagascar. It belongs to the Ambatomainty District, which is a part of Melaky Region. The population was 6,559 inhabitants in 2018.