Bongolava is a region in central-western Madagascar. The capital of the region is Tsiroanomandidy. It had a population of 674,474 in 2018.
The region is situated in central-western Madagascar. It is bordered by Betsiboka, Melaky, Menabe, Vakinankaratra, Itasy and Analamanga. The altitude ranges from to .
It is crossed by the Kiranomena River, Mahajilo River and Manambolo River and the Route nationale 1.
Bongolava Region is divided into two districts, which are sub-divided into 24 communes.