| Official Name: | Masoarivo |
| Pushpin Map: | Madagascar |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Madagascar |
| Pushpin Mapsize: | 180 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Menabe |
| Subdivision Type2: | District |
| Subdivision Name2: | Belo sur Tsiribihina |
| Population As Of: | 2001 |
| Population Total: | 3000 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -19.65°N 88°W |
| Elevation Footnotes: | [1] |
| Elevation M: | 25 |
Masoarivo is a rural municipality in Madagascar. It belongs to the district of Belo sur Tsiribihina, which is a part of Menabe Region. The population of the commune was estimated to be approximately 3,000 in 2001 commune census.
Only primary schooling is available. The majority 50% of the population of the commune are farmers, while an additional 30% receives their livelihood from raising livestock. The most important crop is rice, while other important products are beans and chickpeas. Services provide employment for 5% of the population. Additionally fishing employs 15% of the population.[2]
It is situated at the Tsiribihina River.
In this municipality are situated the following lakes: Lake Hima, Lake Kimanomby, Lake Iboboka and Lake Mikoboka.