The Diocese of Niassa (pt. Diocese Anglicana do Niassa) it is one of the two Anglican dioceses of Mozambique, both part of the Anglican Church of Southern Africa. This diocese is the more Northern of the two, the other is Lebombo. It is divided into 6 archdeaconries: Cobue, Lunho, Lichinga, Milange, Rio Chire and Lurio.
The current bishop is Mark Van Koevering, an American of Dutch descent, in office since 2003.