| Bishops of Hearst–Moosonee (Roman Rite) |
 Bishop Pierre-Olivier Tremblay, O.M.I. (54)
(2022.06.24 – ...)
Bishop of Hearst–Moosonee (Canada)
Un feu sur la terre | Born: | 1970.11.22 (Montpellier, France) | | Ordained Priest: | 1999.05.22 | | Consecrated Bishop: | 2018.07.22 |
| Titular Bishop of Knin (2018.05.21 – 2022.06.24) Auxiliary Bishop of Trois-Rivières (Canada) (2018.05.21 – 2022.06.24) Bishop of Hearst–Moosonee (Canada) (2022.06.24 – ...) |
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 Archbishop Terrence Thomas Prendergast, S.J. (80)
(Apostolic Administrator 2020.11.30 – 2022.06.24)
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 Bishop Robert Ovide Bourgon (68)
(2018.12.03 – 2020.11.30)
Bishop emeritus of Hearst–Moosonee (Canada)
Justitia et misericordia | Born: | 1956.03.10 (Sudbury, ON, Canada) | | Ordained Priest: | 1981.05.08 | | Consecrated Bishop: | 2016.04.25 |
| Priest of Sault Sainte Marie (Canada) (1981.05.08 – 2016.02.02) Bishop of Hearst (Canada) (2016.02.02 – 2018.12.03) Apostolic Administrator of Moosonee (Canada) (2016.02.02 – 2018.12.03) Bishop of Hearst–Moosonee (Canada) (2018.12.03 – 2020.11.30) |
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| Bishops of Hearst (Roman Rite) |
Bishop Robert Ovide Bourgon (68)
(2016.02.02 – 2018.12.03) (see above) |
Bishop Vincent Cadieux, O.M.I. (84)
(2007.07.25 – 2016.02.02) Bishop emeritus of Hearst (Canada)
Bishop emeritus of Moosonee (Canada)
That they may know you | Born: | 1940.02.16 (Alfred, ON, Canada) | | Ordained Priest: | 1966.12.17 | | Consecrated Bishop: | 1992.03.29 |
| Bishop of Moosonee (Canada) (1991.11.26 – 2016.02.02) Apostolic Administrator of Hearst (Canada) (2006.07.18 – 2007.07.25) Bishop of Hearst (Canada) (2007.07.25 – 2016.02.02) |
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Bishop Vincent Cadieux, O.M.I. (84)
(Apostolic Administrator 2006.07.18 – 2007.07.25) |
Bishop André Vallée, P.M.E.
(1996.08.19 – 2005.11.03) Gaudium et spes | Born: | 1930.07.31 (Sainte-Anne-de-Pérade, QC, Canada) | | Ordained Priest: | 1956.06.24 | | Consecrated Bishop: | 1988.01.28 | | Died: | 2015.02.28 († 84) |
| Superior General of Society of Foreign Missions (1973.07.05 – 1979.06.05) Titular Bishop of Sufasar (1987.10.28 – 1996.08.19) Military Ordinary of Canada (Canada) (1987.10.28 – 1996.08.19) Bishop of Hearst (Canada) (1996.08.19 – 2005.11.03) |
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Bishop Pierre Fisette, P.M.E.
(1993.12.27 – 1995.12.21) | Born: | 1943.02.02 (Canada) | | Ordained Priest: | 1968.06.08 | | Consecrated Bishop: | 1994.03.18 | | Died: | 1995.12.21 († 52) |
| Bishop of Hearst (Canada) (1993.12.27 – 1995.12.21) |
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Bishop Roger-Alfred Despatie
(1973.02.08 – 1993.04.13) Vincere in bono malum | Born: | 1927.04.12 (Sudbury, ON, Canada) | | Ordained Priest: | 1952.04.12 | | Consecrated Bishop: | 1968.06.28 | | Died: | 1993.05.14 († 66) |
| Titular Bishop of Usinaza (1968.05.20 – 1973.02.08) Auxiliary Bishop of Sault Sainte Marie (Canada) (1968.05.20 – 1973.02.08) Bishop of Hearst (Canada) (1973.02.08 – 1993.04.13) |
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Bishop Jacques Landriault
(Apostolic Administrator 1971.03.24 – 1973.02.08) |
Bishop Jacques Landriault
(1964.05.27 – 1971.03.24) Voluntas tua | Born: | 1921.09.23 (Alfred, ON, Canada) | | Ordained Priest: | 1947.02.09 | | Consecrated Bishop: | 1962.07.25 | | Died: | 2017.11.06 († 96) |
| Titular Bishop of Cadi (1962.05.15 – 1964.05.27) Auxiliary Bishop of Alexandria in Ontario (Canada) (1962.05.15 – 1964.05.27) Bishop of Hearst (Canada) (1964.05.27 – 1971.03.24) Apostolic Administrator of Hearst (Canada) (1971.03.24 – 1973.02.08) Bishop of Timmins (Canada) (1971.03.24 – 1990.12.13) |
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Bishop Louis Lévesque (later Archbishop)
(1952.06.09 – 1964.04.13) In libro vitæ | Born: | 1908.05.27 (Amqui, QC, Canada) | | Ordained Priest: | 1932.06.26 | | Consecrated Bishop: | 1952.08.15 | | Died: | 1998.03.12 († 89) |
| Bishop of Hearst (Canada) (1952.06.09 – 1964.04.13) Titular Archbishop of Egnatia (1964.04.13 – 1967.02.25) Coadjutor Archbishop of Rimouski (Canada) (1964.04.13 – 1967.02.25) Metropolitan Archbishop of Rimouski (Canada) (1967.02.25 – 1973.04.27) |
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Bishop Georges-Léon Landry
(1946.02.22 – 1952.01.14) Crescamus in Christo per omnia | Born: | 1895.12.03 (Canada) | | Ordained Priest: | 1921.06.24 | | Consecrated Bishop: | 1946.05.01 | | Died: | 1977.12.29 († 82) |
| Bishop of Hearst (Canada) (1946.02.22 – 1952.01.14) Titular Bishop of Cnossus (1952.01.14 – 1970.11.27) |
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Bishop Albini LeBlanc
(1940.12.14 – 1945.12.22) Ut fructum plus afferat | Born: | 1894.05.01 (Canada) | | Ordained Priest: | 1921.05.15 | | Consecrated Bishop: | 1941.02.11 | | Died: | 1957.05.17 († 63) |
| Bishop of Hearst (Canada) (1940.12.14 – 1945.12.22) Bishop of Gaspé (Canada) (1945.12.22 – 1957.05.17) |
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Bishop Joseph Charbonneau (later Archbishop)
(1939.06.22 – 1940.05.21) Ad augusta per angusta | Born: | 1892.07.31 (Canada) | | Ordained Priest: | 1916.06.24 | | Consecrated Bishop: | 1939.08.15 | | Died: | 1959.11.19 († 67) |
| Bishop of Hearst (Canada) (1939.06.22 – 1940.05.21) Coadjutor Archbishop of Montréal (Canada) (1940.05.21 – 1940.08.31) Metropolitan Archbishop of Montréal (Canada) (1940.08.31 – 1950.02.09) Titular Archbishop of Bosporus (1950.02.09 – 1959.11.19) |
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Bishop Joseph-Jean-Baptiste Hallé
(1938.12.03 – 1939.06.22) Oportet illum regnare | Born: | 1874.12.09 (Canada) | | Ordained Priest: | 1897.09.19 | | Consecrated Bishop: | 1921.04.17 | | Died: | 1939.10.07 († 64) |
| Prefect Apostolic of Northern Ontario (Canada) (1918.04.18 – 1920.11.17) Vicar Apostolic of Northern Ontario (Canada) (1920.11.17 – 1938.12.03) Titular Bishop of Theveste (1920.12.16 – 1920.12.18) Titular Bishop of Perrhe (1920.12.18 – 1938.12.03) Bishop of Hearst (Canada) (1938.12.03 – 1939.06.22) |
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| Vicars Apostolic of Northern Ontario (Roman Rite) |
Bishop Joseph-Jean-Baptiste Hallé
(1920.11.17 – 1938.12.03) (see above) |
| Prefects Apostolic of Northern Ontario (Roman Rite) |
Fr. Joseph-Jean-Baptiste Hallé (later Bishop)
(1918.04.18 – 1920.11.17) (see above) |
Cathédrale Notre-Dame-de-l’Assomption, Hearst, Ontario 
Basilica of Christ the King, Moosonee, Ontario 
