The Diocese of Malaita is one of the ten current dioceses of the Anglican Church of Melanesia.
One of the four original ACOM dioceses, Malaita diocese was erected in January 1975; it is currently subdivided into six regions of 46 parishes.
Malaita Province is the most populous and one of the largest of the nine provinces of Solomon Islands.
It is named after its largest island, Malaita.
In 2024, parts of Malaita Island, South Malaita Island and Sikaiana were carved off into the newly formed Diocese of Southern Malaita and Sikaiana.