Mbarali District is one of the seven districts of Mbeya Region, Tanzania. It is bordered to the north by Iringa region and east by Njombe region. To the south the district is bordered by Mbeya Rural District and to the west by Chunya District.

In 2016 the Tanzania National Bureau of Statistics report there were 331,206 people in the district, from 300,517 in 2012.

Mbarali district is the most famous area for rice farming. The district is home to Kapunga rice project and Mbarali estate. The district hosts a very famous wetland called Ihefu, as well as the Usangu plain. Ruaha National Park is within the district to the north side.