The Diocese of Maiduguri (Latin: Dioecesis Maiduguriensis[4]) is a Latin Church diocese of the Catholic Church located in the city of Maiduguri in the ecclesiastical province of Jos in Nigeria.

Maiduguri was the diocese that suffered most from Boko Haram, having endured close to a decade of fierce persecution.

Since 2020, however, the terrorist group has not carried out significant attacks in Maiduguri, a fact that Bishop Oliver Doeme attributes to divine intervention, in response to a Rosary prayer campaign he began after having a vision in which the Virgin Mary handed him a sword which turned into a Rosary.

"The war was won on bended knee", he told journalists during a conference organised by Aid to the Church in Need, in July 2022.

This article about a Roman Catholic diocese in Nigeria is a stub.