For other municipalities with the same name, see: Fiadanana (disambiguation)
Fiadanana is a rural municipality in Madagascar. It belongs to the district of Ambohidratrimo (district), which is a part of Analamanga Region. The population of the commune was 7,223 in 2019.
The Sisaony is the only river that crosses the municipality.
The village is inhabited by the Merina.
71% of the population are Protestants, 25% are Catholic.