Diocese of Alotau-Sideia


The Diocese of Alotau-Sideia is a Latin Catholic suffragan diocese in the ecclesiastical province of the Metropolitan Archdiocese of Port Moresby, yet remains dependent on the Roman Congregation for the Missions Propaganda Fide.
Its cathedral episcopal see is the Cathedral of the Sacred Heart of Jesus, in Alotau, Milne Bay Province.

History

Ordinaries

;Apostolic Prefects of Samarai
;Apostolic Vicar of Samarai
;Diocesan Bishops of Sideia
;Diocesan Bishops of Alotau-Sideia