Soanindrariny is a rural municipality situated in Madagascar. It is part of the Vakinankaratra Region and falls under the jurisdiction of the Antsirabe II district.
The commune covers an area of approximately 258 km² and is located about 29 km east of the city of Antsirabe. According to the 2001 commune census, the population of Soanindrariny was estimated to be around 21,000 residents.