Roman Catholic Diocese of Bà Rịa

The Diocese of Ba Ria (Latin: Dioecesis Barianensis ) is a location in Vietnam Roman Catholic diocese based in Ba Ria.

It was on 22 November 2005 by Pope Benedict XVI. built with the Apostolic Constitution Ad aptius consulendum from territories of the diocese of Xuan Lôc and the Archdiocese of Ho Chi Minh City is a suffragan. At the same time the Apostles James and Philip church, consecrated in Ba Ria was raised to the new cathedral.