Titular Episcopal See of

Allegheny

Rite: Roman (Latin)

Location: m. Philadelphia, Pennsylvania, USA

1876.01.11: Established as Diocese of Allegheny (English) / Allghenen(sis) (Latin) (from Diocese of Pittsburgh)
1889.07.01: Suppressed (to Diocese of Pittsburgh)
1971: Restored as Titular Episcopal See of Allegheny (English) / Allghenen(sis) (Latin)

Titular Bishop (2004.05.21 – ...):

Bishop John Walter Flesey (78)

Auxiliary Bishop emeritus of Newark (USA)

Bishops of Allegheny (Roman Rite)

Bishop John Tuigg
(Apostolic Administrator 1877 – 1889.07.01)

Bishop Michael Domenec, C.M.
(1876.01.11 – 1877.07.29)

Bishop of Pittsburgh (USA) (1860.09.28 – 1876.01.11)

Bishop of Allegheny (1876.01.11 – 1877.07.29)

Titular Bishop: Bishop Robert Joseph McManus (69) (1998.12.01 – 2004.03.09)
Titular Bishop: Bishop Patrick Joseph McGrath (75) (1988.12.06 – 1998.06.30)
Titular Bishop: Bishop Edward Michael Egan (later Cardinal) (1985.04.01 – 1988.11.05)
Titular Bishop: Bishop George Leo Leech (1971.10.19 – 1985.03.12)

as of 2020.12.31