Bariadi District[1] is one of the five districts of the Simiyu Region of Tanzania, East Africa.

[2] Prior to 2012, Bariadi District was part of Shinyanga Region.

The Dutwa Ward contains one of the world's largest nickel deposits.

[3] As of 2002, Bariadi District was administratively divided into twenty-six wards:[4]

This Simiyu Region location article is a stub.