Titular Episcopal See of Oreus, Greece

Rite: Roman (Latin)

Name: Oreus (latine) / Oreo (Italiano) / Orien(sis) (Latin)

Location: Orei, pr. Grecia or Ellade I, m. Athenai, Greece

1927: Established as Titular Episcopal See of Oreus (latine) / Oreo (Italiano) / Orien(sis) (Latin)

Titular Bishop:

vacant

Titular Bishop: Bishop Ildefonso Maria Sansierra Robla, O.F.M. Cap. (later Archbishop) (1962.03.05 – 1966.04.28)
Titular Bishop: Bishop Germán Vega Campón, O.S.A. (1941.04.19 – 1961.05.14)
Titular Bishop: Bishop Sylvester Joseph Espelage (艾原道), O.F.M. (1930.06.10 – 1940.10.25)
Titular Bishop: Bishop William Clancy (1834.10.30 – 1847.06.19)
Titular Bishop: Bishop John Chisholm (1791.11.08 – 1814.07.08)
Titular Bishop: Bishop Giovanni Battista Jesich (1788.12.15 – 1789.09.13)
Titular Bishop: Bishop Paolo Antonio Nerini, B. (1753.11.16 – 1756.08.11)
Titular Bishop: Bishop Pedro de Córdoba, O.P. (1521.09.13 – 1523)