 Bishop Michael Francis Glancey Born:1854.10.25 (England)Ordained Priest:1877.12.22Consecrated Bishop:1924.09.29Died:1925.10.16 († 70)Titular Bishop of Flaviopolis (1924.08.05 – 1925.10.16)Auxiliary Bishop of Birmingham (England) (1924.08.05 – 1925.10.16) |
  Bishop Christopher Glancy, C.S.V. (64) Titular Bishop of Absa SallaAuxiliary Bishop emeritus of Belize City–Belmopan (Belize)Born:1960.04.10 (Moline, IL, USA)Ordained Priest:1993.04.17Consecrated Bishop:2012.05.05Auxiliary Bishop of Belize City–Belmopan (Belize) (2012.02.18 – 2024.03.13)Titular Bishop of Absa Salla (2012.02.18 – ...) |
  Bishop Jan Glapiak (64) Titular Bishop of BisicaAuxiliary Bishop of Poznań (Poland)Ecce mater tuaBorn:1959.12.26 (Górka Duchowna, Poland)Ordained Priest:1984.05.24Consecrated Bishop:2021.12.19Priest of Poznań (Poland) (1984.05.24 – 2021.11.15)Titular Bishop of Bisica (2021.11.15 – ...)Auxiliary Bishop of Poznań (Poland) (2021.11.15 – ...) |
 Bishop Marcu Glaser Born:1880.04.25 (Ukraine)Ordained Priest:1905.06.24Consecrated Bishop:1943.07.25Died:1950.05.25 († 70)Titular Bishop of Cæsaropolis (1943.06.10 – 1950.05.25)Apostolic Administrator of Iaşi (Romania) (1944.10.18 – 1947.10.30)Auxiliary Bishop of Iaşi (Romania) (1947.10.30 – 1950.05.25) |
 Archbishop Giovanni Nepomuceno Glavina Born:1828.04.13Ordained Priest:1852.08.17Consecrated Bishop:1878.10.06Died:1899.11 († 71)Bishop of Poreč i Pula (Croatia) (1878.09.13 – 1882.07.03)Bishop of Koper (Slovenia) (1882.07.03 – 1895.12.02)Bishop of Trieste (Italy) (1882.07.03 – 1895.12.02)Titular Bishop of Theodosiopolis (1895.12.02 – 1896.12.03)Titular Archbishop of Pelusium (1896.12.03 – 1899.11) |
| Bishop Jacobus Glazer Born:1836.06.24Ordained Priest:1858.11.30Consecrated Bishop:1887.10.23Died:1898.05.03 († 61)Titular Bishop of Gabala (1887.09.04 – 1898.05.03)Auxiliary Bishop of Przemyśl (Poland) (1887.09.04 – 1898.05.03) |
| Bishop Hermann Gleich Born:1815.09.10 (Poland)Ordained Priest:1838.09.30Consecrated Bishop:1875.09.21Died:1900.04.02 († 84)Titular Bishop of Mallus (1875.08.10 – 1900.04.02)Auxiliary Bishop of Wrocław (Poland) (1875.08.10 – 1900.04.02) |
 Bishop Luis Gleisner Wobbe, Opus Dei (88) Titular Bishop of MididiAuxiliary Bishop emeritus of La Serena (Chile)Ad Jesum per MariamBorn:1936.02.22 (Iquique, Chile)Ordained Priest:1963.08.11Consecrated Bishop:1991.08.15Priest of Opus Dei (Italy) (1963.08.11 – 1991.07.03)Auxiliary Bishop of Rancagua (Chile) (1991.07.03 – 2001.07.10)Titular Bishop of Mididi (1991.07.03 – ...)Auxiliary Bishop of La Serena (Chile) (2001.07.10 – 2014.11.21) |
 Bishop Heinrich Gleumes Born:1897.02.06 (Germany)Ordained Priest:1921.12.17Consecrated Bishop:1948.11.30Died:1951.08.26 († 54)Titular Bishop of Cissita (1948.10.08 – 1951.08.26)Auxiliary Bishop of Münster (Germany) (1948.10.08 – 1951.08.26) |
 Archbishop Achille Marie Joseph Glorieux Born:1910.04.02 (France)Ordained Priest:1934.06.29Consecrated Bishop:1969.11.09Died:1999.09.27 († 89)Secretary of Council of the Laity (1967.01.06 – 1969.09.19)Apostolic Pro-Nuncio to Syria (1969.09.19 – 1973.08.03)Titular Archbishop of Beverley (1969.09.19 – 1999.09.27)Apostolic Pro-Nuncio to Egypt (1973.08.03 – 1984) |
 Bishop Giorgio Glosauer Born:1860.06.22 (Czechia)Ordained Priest:1884.07.15Consecrated Bishop:1917.09.08Died:1926.06.09 († 65)Titular Bishop of Hermopolis Magna (1917.07.07 – 1926.06.09)Auxiliary Bishop of Praha (Czechia) (1917.07.07 – 1926.06.09) |
 Bishop Samuel Głowiński Born:1703.02Ordained Priest:1726.02.22Died:1776.09.14 († 73)Titular Bishop of Hebron (1733.12.02 – 1776.09.14)Auxiliary Bishop of Lviv (Ukraine) (1733.12.02 – 1776.09.14) |
| Bishop Arseniusz Główniewski, O.S.B.M. (Ukrainian Rite) |
 Bishop John Joseph Glynn Ut cognoscant teBorn:1926.08.06 (USA)Ordained Priest:1951.04.11Consecrated Bishop:1992.01.06Died:2004.08.23 († 78)Auxiliary Bishop of the Military Ordinariate of United States of America (USA) (1991.12.10 – 2002.08.13)Titular Bishop of Monteverde (1991.12.10 – 2004.08.23) |
| Bishop Karl Gnädinger In virtute Spiritus SanctiBorn:1905.11.05 (Germany)Ordained Priest:1930.03.16Consecrated Bishop:1961.01.12Died:1995.03.12 († 89)Auxiliary Bishop of Freiburg im Breisgau (Germany) (1960.11.05 – 1980.12.30)Titular Bishop of Celerina (1960.11.05 – 1995.03.12) |
| Bishop Jan Gniazdowski, O. Cist. Titular Bishop of Theodosia (1583.12.19 – 1608.08.12)Auxiliary Bishop of Gniezno (Poland) (1583.12.19 – 1608.08.12) |
| Bishop Joannes Franciscus Gniński Titular Bishop of Ænos (1619.12.02 – 1625.05.16)Auxiliary Bishop of Poznań (Poland) (1619.12.02 – 1625.05.16) |