The Diocese of Hà Tĩnh () is a Roman Catholic diocese in central Vietnam. The diocese was erected on December 22, 2018.
Ordinaries BishopCoat of ArmsPeriod in officeStatusReference1Bishop Paul Nguyễn Thái Hợp, O.P.December 22, 2018 – March 19, 2021Resigned–Bishop Louis Nguyễn Anh TuấnMarch 19, 2021 – March 25, 2023Apostolic administrator2March 25, 2023 – presentCurrent bishop
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