The Eritrean Catholic Eparchy of Barentu () is a Catholic eparchy located in the town of Barentu in Eritrea. It is a part of the ecclesiastical province of Asmara.
On 21 December 1995, Pope John Paul II established the Eparchy of Barentu from the Eparchy of Asmara and it became a suffragan of the Ethiopian Catholic Archeparchy of Addis Abeba. With the establishment of the autonomous sui iuris Eritrean Catholic Church by Pope Francis in January 2015, the Eparchy of Barentu became a suffragan the Eritrean Catholic Archeparchy of Asmara.