| Vicars Apostolic of Phnom Penh (Roman Rite) |
 Bishop Olivier Michel Marie Schmitthaeusler, M.E.P. (54)
(2010.10.01 – ...)
Vicar Apostolic of Phnom Penh (Cambodia)
Titular Bishop of Catabum castra
Caritas Christi urget nos |
Bishop Emile Destombes, M.E.P.
(2001.04.14 – 2010.10.01) | Born: | 1935.08.15 (Roncq, France) | | Ordained Priest: | 1961.12.21 | | Consecrated Bishop: | 1997.10.05 | | Died: | 2016.01.28 (Phnom-Penh, Cambodia † 80) |
| Coadjutor Vicar Apostolic of Phnom Penh (Cambodia) (1997.04.14 – 2001.04.14) Titular Bishop of Altava (1997.04.14 – 2016.01.28) Vicar Apostolic of Phnom Penh (Cambodia) (2001.04.14 – 2010.10.01) President of Episcopal Conference of Laos and Cambodia (2005 – 2009.12) |
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Bishop Yves-Georges-René Ramousse, M.E.P.
(1992 – 2001.04.14) |
Bishop Joseph Chhmar Salas
(1976.04.30 – 1977.09) | Born: | 1937.10.21 (Preah Meada, Cambodia) | | Ordained Priest: | 1964.06.24 | | Consecrated Bishop: | 1975.04.14 | | Died: | 1977.09 (Taing Kok, Cambodia † 39) |
| Coadjutor Vicar Apostolic of Phnom Penh (Cambodia) (1975.04.06 – 1976.04.30) Titular Bishop of Sigus (1975.04.06 – 1977.09) Vicar Apostolic of Phnom Penh (Cambodia) (1976.04.30 – 1977.09) |
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Bishop Yves-Georges-René Ramousse, M.E.P.
(1962.11.12 – 1976) |
Bishop Gustave-André-Ferdinand Raballand, M.E.P.
(1956.02.29 – 1962.04) | Born: | 1901.10.30 (France) | | Ordained Priest: | 1925.06.06 | | Consecrated Bishop: | 1956.05.01 | | Died: | 1973.01.13 († 71) |
| Vicar Apostolic of Phnom Penh (Cambodia) (1956.02.29 – 1962.04) Titular Bishop of Eguga (1956.02.29 – 1973.01.13) |
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Bishop Jean-Baptiste-Maximilien Chabalier, M.E.P.
(1937.12.02 – 1955.06.11) | Born: | 1887.09.27 (France) | | Ordained Priest: | 1913.06.28 | | Consecrated Bishop: | 1938.02.24 | | Died: | 1955.06.11 († 67) |
| Titular Bishop of Pharan (1937.12.02 – 1955.06.11) Vicar Apostolic of Phnom Penh (Cambodia) (1937.12.02 – 1955.06.11) |
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Bishop Valentin Herrgott, M.E.P.
(1928.12.17 – 1936.03.23) | Born: | 1864.10.11 (France) | | Ordained Priest: | 1889.09.21 | | Consecrated Bishop: | 1928.05.01 | | Died: | 1936.03.23 († 71) |
| Coadjutor Vicar Apostolic of Phnom Penh (Cambodia) (1928.02.18 – 1928.12.17) Titular Bishop of Samosata (1928.02.18 – 1936.03.23) Vicar Apostolic of Phnom Penh (Cambodia) (1928.12.17 – 1936.03.23) |
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Bishop Jean-Claude Bouchut, M.E.P.
(1902.07.23 – 1928.12.17) | Born: | 1860.03.04 (France) | | Ordained Priest: | 1883.02.17 | | Consecrated Bishop: | 1902.09.21 | | Died: | 1928.12.17 († 68) |
| Titular Bishop of Panemotichus (1902.07.23 – 1928.12.17) Vicar Apostolic of Phnom Penh (Cambodia) (1902.07.23 – 1928.12.17) |
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| Vicars Apostolic of Cambodia (Roman Rite) |
Bishop Jean-Baptiste Grosgeorge, M.E.P.
(1896.01.28 – 1902.03.01) | Born: | 1846.06.15 (France) | | Ordained Priest: | 1869.10.28 | | Consecrated Bishop: | 1896.05.24 | | Died: | 1902.03.01 († 55) |
| Titular Bishop of Œa (1896.01.28 – 1902.03.01) Vicar Apostolic of Cambodia (Cambodia) (1896.01.28 – 1902.03.01) |
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Bishop Marie-Laurent-François-Xavier Cordier, M.E.P.
(1882.06.18 – 1895.08.14) | Born: | 1821.05.01 (France) | | Ordained Priest: | 1847.06.20 | | Consecrated Bishop: | 1883.01.06 | | Died: | 1895.08.14 († 74) |
| Titular Bishop of Gratianopolis (1882.06.18 – 1895.08.14) Vicar Apostolic of Cambodia (Cambodia) (1882.06.18 – 1895.08.14) |
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Bishop Isidore-François-Joseph Colombert, M.E.P.
(1872.02.16 – 1882) | Born: | 1838.03.19 (France) | | Ordained Priest: | 1863.05.30 | | Consecrated Bishop: | 1872.07.25 | | Died: | 1894.12.31 († 56) |
| Coadjutor Vicar Apostolic of Western Cochin (Vietnam) (1872.02.06 – 1873.12.01) Titular Bishop of Samosata (1872.02.06 – 1894.12.31) Vicar Apostolic of Cambodia (Cambodia) (1872.02.16 – 1882) Vicar Apostolic of Western Cochin (Vietnam) (1873.12.01 – 1894.12.31) |
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Bishop Jean-Claude Miche, M.E.P.
(Apostolic Administrator 1850.08.27 – 1869) |
Pro-Cathedral of St. Joseph, Phnom Penh 
