The Diocese of Miri (Latin: Dioecesis Mirensis; Malay: Keuskupan Miri; Mandarin: ç¾ÂéÂÂæÂÂåº) is a Latin Church diocese of the Catholic Church in Malaysia. Situated northeast of the Archdiocese of Kuching, of which it is a suffragan diocese. St. Joseph's Cathedral in Miri serves as both the diocesan cathedral and the seat of bishop. The diocese covers Miri, Bintulu, Limbang, Lawas, Tatau and Marudi.
In 1959, when the Vicariate was established, Anthony Denis Galvin, a Mill Hill priest, was appointed as the Apostolic Vicar (later bishop) until his sudden death in 5 September 1976. Anthony Lee Kok Hin, a local priest from Miri, become the first local bishop of Miri in 30 May 1977. In 2013, following his resignation, Pope Francis elected Rev. Fr. Richard Ng, a Kuching-born priest, as his successor and he was installed as the second bishop of this diocese in 2014.