Sahasinaka is a municipality in the Manakara district of the Fitovinany Region in Madagascar.

This municipality is situated at 42 Km north-west from Manakara.

It lies at the Faraony River and Fangorinana River[2] and the Fianarantsoa-Côte Est railway that links the town with Fianarantsoa and Manakara.

Rice and coffee are grown, new is the plantation of cloves.

The viaduct of the Fianarantsoa-Côte Est railway and the Faraony River waterfalls at a distance of 4km.