Diocese of Phát Diệm
The Diocese of Phát Diệm is a Roman Catholic diocese of Vietnam.
The creation of the diocese in present form was declared November 24, 1960.
The diocese covers an area of 1,787 km², and is a suffragan diocese of the Archdiocese of Hanoi.
By 2004, the diocese of Phát Diêm had about 144,721 believers, 31 priests and 65 parishes.
Queen of the Rosary Cathedral in Kim Sơn District has been assigned as the Cathedral of the diocese. This cathedral complex was built between 1875 and 1899 and comprises four churches and one basilica, as well as several parks, ponds and grottos.
Ordinaries
Bishop of Phát Diêm (1960-present)
;Coadjutor Vicar Apostolic of Coastal Tonking;Coadjutor Vicar Apostolic of Phát Diêm
;Coadjutor Bishops of Phát Diêm