| Official Name: | Sahamamy |
| Pushpin Map: | Madagascar |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Madagascar |
| Pushpin Mapsize: | 180 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Alaotra-Mangoro |
| Subdivision Type2: | District |
| Subdivision Name2: | Amparafaravola |
| Population Total: | 4000 |
| Population Blank1 Title: | Ethnicities |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -17.5167°N 66°W |
| Elevation Footnotes: | [1] |
| Postal Code Type: | Postal code |
| Postal Code: | 504 |
Sahamamy is a rural municipality in Madagascar. It belongs to the district of Amparafaravola, which is a part of Alaotra-Mangoro Region. The population of the commune is not known, but in 2013 elections there had been 3942 authorized voters.[2]
This municipality is situated at 15 km North of Amparafaravola. 4 fokontany (villages) belong to this municipality.
The National Road 3a crosses this municipality.