| Official Name: | Mahaiza |
| Pushpin Map: | Madagascar |
| Pushpin Label Position: | bottom |
| Pushpin Map Caption: | Location in Madagascar |
| Pushpin Mapsize: | 180 |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Vakinankaratra |
| Subdivision Type2: | District |
| Subdivision Name2: | Betafo |
| Area Total Km2: | 480 |
| Population As Of: | 2018 |
| Population Total: | 24,244 |
| Population Blank1 Title: | Ethnicities |
| Population Blank1: | Merina |
| Population Blank2 Title: | Religions |
| Timezone: | EAT |
| Utc Offset: | 3 |
| Coordinates: | -19.9°N 95°W |
| Elevation M: | 1594 |
| Postal Code Type: | Code Postal |
| Postal Code: | 113 |
Mahaiza is a town and commune in Madagascar. It belongs to the district of Betafo, which is a part of Vakinankaratra Region. The population of the commune was estimated to be approximately 24,244 in 2018 and is situated at 8.3 km south west from Betafo.
11 Fokontany (villages) belong to the commune: Mahaiza, Ambohimanamora, Ambohimalaza, Mahazina, Ankafotra, Fenoarivo, Marotsiraka, Ambohitrananana, Ambalamarina, Miandrarivo and Mandoa.
Primary and junior level secondary education are available in town. The majority 98% of the population of the commune are farmers, while an additional 2% receives their livelihood from raising livestock. The most important crop is rice, while other important products are beans and cassava.
The town is principally inhabited by Merino people followed by Betsileo.[1]