| Bishops |
  Bishop Léon Wagener (61)
Titular Bishop of Aquæ novæ in Numidia
Auxiliary Bishop of Luxembourg (Luxembourg)
Ad fontes fidei |
 Bishop Jodok Wagenhauer
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 Bishop Heinrich Wagernin
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 Archbishop Alois Wagner
Caritas vobis in Christo Jesu |
 Bishop Jorge Luis Wagner (56)
Titular Bishop of Gergis
Auxiliary Bishop of Bahía Blanca (Argentina)
| Born: | 1967.01.19 (Guaminí, Argentina) | | Ordained Priest: | 1993.09.02 | | Consecrated Bishop: | 2019.11.16 |
| Titular Bishop of Gergis (2019.09.24 – ...) Auxiliary Bishop of Bahía Blanca (Argentina) (2019.09.24 – ...) |
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 Bishop Stefano Walczykiewicz
| Born: | 1886.08.17 (Ukraine) | | Ordained Priest: | 1912 | | Consecrated Bishop: | 1928.11.25 | | Died: | 1940.05.12 († 53) |
| Titular Bishop of Zenopolis in Isauria (1928.07.20 – 1940.05.12) Auxiliary Bishop of Lutsk (Ukraine) (1928.07.20 – 1940.05.12) |
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 Bishop Joachim Walder (67)
Titular Bishop of Legia
Auxiliary Bishop of Aizawl (India)
| Born: | 1956.04.20 (Nirkan, India) | | Ordained Priest: | 1986.04.26 | | Consecrated Bishop: | 2023.05.28 |
| Titular Bishop of Legia (2023.03.30 – ...) Auxiliary Bishop of Aizawl (India) (2023.03.30 – ...) |
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 Bishop Paul Edward Waldschmidt, C.S.C.
In all things charity | Born: | 1920.01.07 (USA) | | Ordained Priest: | 1946.06.24 | | Consecrated Bishop: | 1978.03.02 | | Died: | 1994.10.20 († 74) |
| Auxiliary Bishop of Portland in Oregon (USA) (1977.11.28 – 1990.01.08) Titular Bishop of Citium (1977.11.28 – 1994.10.20) |
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Archbishop Leo Walega | Born: | 1859.03.25 (Poland) | | Ordained Priest: | 1883.03.24 | | Consecrated Bishop: | 1901.05.12 | | Died: | 1933.03.23 († 73) |
| Bishop of Tarnów (Poland) (1901.04.15 – 1932.05.04) Titular Bishop of Tlos (1932.05.04 – 1933.03.13) Titular Archbishop of Oxyrynchus (1933.03.13 – 1933.03.23) |
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Bishop Adrian Walenburch | Born: | 1609.05.23 (Germany) | | Ordained Priest: | 1633.09.24 | | Consecrated Bishop: | 1661.11.30 | | Died: | 1669.09.12 († 60) |
| Titular Bishop of Adrianopolis (1661.08.08 – 1669.09.12) Auxiliary Bishop of Köln (Germany) (1661.08.08 – 1669.09.12) |
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Bishop Peter Walenburch | Born: | 1610 | | Ordained Priest: | 1641.03.30 | | Died: | 1675.12.21 († 65) |
| Auxiliary Bishop of Mainz (Germany) (1658.01.28 – 1670) Titular Bishop of Missene (1658.01.28 – 1675.12.21) Auxiliary Bishop of Köln (Germany) (1670 – 1675.12.21) |
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Bishop Władysław Jan Walknowski | Titular Bishop of Benda (1768.12.19 – 1779.12) Coadjutor Bishop of Poznań (Poland) (1768.12.19 – 1779.12) |
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 Bishop Francis Wall
| Born: | 1866.10.16 (Ireland) | | Ordained Priest: | 1889.11.01 | | Consecrated Bishop: | 1931.05.26 | | Died: | 1947.05.16 († 80) |
| Titular Bishop of Thasus (1931.01.23 – 1947.05.16) Auxiliary Bishop of Dublin (Ireland) (1931.01.23 – 1947.05.16) |
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Bishop Peter Wall | Born: | 1582.12.31 | | Ordained Priest: | 1607 | | Consecrated Bishop: | 1618.07.15 | | Died: | 1630.07.05 († 47) |
| Titular Bishop of Adramyttium (1618.05.28 – 1630.07.05) Auxiliary Bishop of Augsburg (Germany) (1618.05.28 – 1630.07.05) |
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 Bishop John Wallace
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Bishop Johann Anton Wallreuther | Born: | 1673.05.25 (Germany) | | Ordained Priest: | 1698.03.15 | | Consecrated Bishop: | 1731.04.22 | | Died: | 1734.01.16 († 60) |
| Titular Bishop of Sarepta (1731.03.05 – 1734.01.16) Auxiliary Bishop of Worms (Germany) (1731.03.05 – 1734.01.16) |
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 Bishop Eamonn Oliver Walsh (78)
Titular Bishop of Elmham
Auxiliary Bishop emeritus of Dublin (Ireland)
| Born: | 1944.09.01 (Celbridge, Ireland) | | Ordained Priest: | 1969.04.13 | | Consecrated Bishop: | 1990.04.22 |
| Auxiliary Bishop of Dublin (Ireland) (1990.03.07 – 2019.09.30) Titular Bishop of Elmham (1990.03.07 – ...) |
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Bishop Gerald Thomas Walsh (81) Titular Bishop of Altiburus
Auxiliary Bishop emeritus of New York (USA)
That all may be one | Born: | 1942.04.25 (New York, NY, USA) | | Ordained Priest: | 1967.05.27 | | Consecrated Bishop: | 2004.09.21 |
| Auxiliary Bishop of New York (USA) (2004.06.28 – 2017.09.05) Titular Bishop of Altiburus (2004.06.28 – ...) |
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Bishop James Anthony Walsh, M.M. |
Bishop Paul Henry Walsh Rejoice in hope | Born: | 1937.08.17 (Brooklyn, NY, USA) | | Ordained Priest: | 1966.06.09 | | Consecrated Bishop: | 2003.05.29 | | Died: | 2014.10.18 († 77) |
| Auxiliary Bishop of Rockville Centre (USA) (2003.04.03 – 2012.08.17) Titular Bishop of Abthugni (2003.04.03 – 2014.10.18) |
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Bishop Johann Walterfinger, O.S.B. | Titular Bishop of Germanicia (1630.09.09 – 1641.11.27) Auxiliary Bishop of Wien (Austria) (1630.09.09 – 1641.11.27) |
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Bishop William John Waltersheid (66) Titular Bishop of California
Auxiliary Bishop of Pittsburgh (USA)
Ecce mater tua | Born: | 1956.11.18 (Ashland, PA, USA) | | Ordained Priest: | 1992.07.11 | | Consecrated Bishop: | 2011.04.25 |
| Titular Bishop of California (2011.02.25 – ...) Auxiliary Bishop of Pittsburgh (USA) (2011.02.25 – ...) |
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 Bishop Peter Wang Rui-huan (王瑞寰) ▼
| Born: | 1904 (China) | | Ordained Priest: | 1936 | | Consecrated Bishop: | 1959.07.12 (no papal mandate) | | Died: | 1992.11.13 († 88) |
| Apostolic Administrator of Harbin 哈爾濱 (China) (1959 – 1992.11.13▼) |
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Bishop Ignatius Wang Zhong-zhang (汪中璋) (89) Titular Bishop of Sitipa
Auxiliary Bishop emeritus of San Francisco (USA)
Quid retribuam Domino | Born: | 1934.02.27 (Beijing, China) | | Ordained Priest: | 1959.07.04 | | Consecrated Bishop: | 2003.01.30 |
| Auxiliary Bishop of San Francisco (USA) (2002.12.13 – 2009.05.16) Titular Bishop of Sitipa (2002.12.13 – ...) |
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Bishop Anthony Wang Zi-cheng (王子澄) ▼ | Born: | 1923 (China) | | Ordained Priest: | 1946 | | Consecrated Bishop: | 1987.12.08 (no papal mandate) | | Died: | 1995.05.24 († 72) |
| Prefect Apostolic of Lixian 澧縣 (China) (1987 – 1995.05.24▼) |
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 Bishop Rafic Warcha (51) (Maronite Rite)
Titular Bishop of Apamea in Syria of the Maronites
Procurator at Rome of the Maronites
| Born: | 1971.11.01 (Okaibé, Lebanon) | | Ordained Priest: | 1996.08.17 | | Consecrated Bishop: | 2018.04.07 |
| Bishop of Curia of the Maronites (2018.02.14 – 2019.06.15) Titular Bishop of Apamea in Syria of the Maronites (2018.02.14 – ...) Procurator at Rome of the Maronites (2019.06.15 – ...) |
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Bishop James Ward | Born: | 1905.09.04 (Scotland) | | Ordained Priest: | 1929.06.29 | | Consecrated Bishop: | 1960.09.28 | | Died: | 1973.10.21 († 68) |
| Titular Bishop of Sita (1960.07.02 – 1973.10.21) Auxiliary Bishop of Glasgow (Scotland) (1960.07.02 – 1973.10.21) |
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Bishop John James Ward | Born: | 1920.09.28 (Los Angeles, CA, USA) | | Ordained Priest: | 1946.05.04 | | Consecrated Bishop: | 1963.12.12 | | Died: | 2011.01.10 († 90) |
| Auxiliary Bishop of Los Angeles (USA) (1963.10.16 – 1996.05.07) Titular Bishop of Bria (1963.10.16 – 1996.06.15) Titular Bishop of California (1996.06.15 – 2011.01.10) |
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Bishop Shlemon Warduni (80) (Chaldean Rite) Titular Bishop of Anbar of the Chaldeans
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 Bishop Zdenek Wasserbauer (56)
Titular Bishop of Buthrotum
Auxiliary Bishop of Praha (Czechia)
| Born: | 1966.06.15 (Nové Město na Moravě, Czechia) | | Ordained Priest: | 1996.09.30 | | Consecrated Bishop: | 2018.05.19 |
| Titular Bishop of Buthrotum (2018.01.23 – ...) Auxiliary Bishop of Praha (Czechia) (2018.01.23 – ...) |
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Bishop Piotr Wawrzynek (53) Titular Bishop of Rusuccuru
Auxiliary Bishop of Legnica (Poland)
In nomine Jesu | Born: | 1970.04.25 (Wrocław, Poland) | | Ordained Priest: | 1995.05.27 | | Consecrated Bishop: | 2023.04.15 |
| Titular Bishop of Rusuccuru (2023.03.04 – ...) Auxiliary Bishop of Legnica (Poland) (2023.03.04 – ...) |
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Bishop Artur Ważny (56) Titular Bishop of Mazaca
Auxiliary Bishop of Tarnów (Poland)
| Born: | 1966.10.12 (Rzeszów, Poland) | | Ordained Priest: | 1991.05.25 | | Consecrated Bishop: | 2021.01.30 |
| Titular Bishop of Mazaca (2020.12.12 – ...) Auxiliary Bishop of Tarnów (Poland) (2020.12.12 – ...) |
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Bishop Emil Aloysius Wcela | Born: | 1931.05.01 (Bay Shore, NY, USA) | | Ordained Priest: | 1956.06.02 | | Consecrated Bishop: | 1988.12.13 | | Died: | 2022.05.21 (Ronkonkoma, NY, USA † 91) |
| Auxiliary Bishop of Rockville Centre (USA) (1988.10.21 – 2007.04.03) Titular Bishop of Filaca (1988.10.21 – 2022.05.21) |
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