| Bishops of Rio Branco (Roman Rite) |
 Bishop Antônio Fontinele de Melo (58)
(2026.09.18 – ...)
Bishop of Rio Branco (Brazil)
Estou no meio de Vós, como aquele que serve | Born: | 1968.05.09 (Camocim, CE, Brazil) | | Ordained Priest: | 1999.09.18 | | Consecrated Bishop: | 2020.10.17 |
| Priest of Porto Velho (Brazil) (1999.09.18 – 2020.08.12) Bishop of Humaitá (Brazil) (2020.08.12 – 2026.09.18) Apostolic Administrator of Rio Branco (Brazil) (2026.07.01 – 2026.09.18) Bishop of Rio Branco (Brazil) (2026.09.18 – ...) |
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Bishop Antônio Fontinele de Melo (58)
(Apostolic Administrator 2026.07.01 – 2026.09.18) |
 Bishop Joaquín Pertíñez Fernández, O.A.R. (73)
(1999.02.24 – 2026.07.01)
Bishop emeritus of Rio Branco (Brazil)
Ad Majorem Dilectionem | Born: | 1952.09.22 (Monachil, Spain) | | Ordained Priest: | 1978.07.16 | | Consecrated Bishop: | 1999.05.30 |
| Bishop of Rio Branco (Brazil) (1999.02.24 – 2026.07.01) |
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Bishop Moacyr Grechi, O.S.M. (later Archbishop)
(1986.02.15 – 1998.07.29) | Born: | 1936.01.19 (Araranguá, SC, Brazil) | | Ordained Priest: | 1961.06.29 | | Consecrated Bishop: | 1973.10.21 | | Died: | 2019.06.17 (Porto Velho, RO, Brazil † 83) |
| Bishop-Prelate of Acre e Purus (Brazil) (1972.07.10 – 1986.02.15) Titular Bishop of Vegesela in Numidia (1973.07.20 – 1978.05.26) Bishop of Rio Branco (Brazil) (1986.02.15 – 1998.07.29) Metropolitan Archbishop of Porto Velho (Brazil) (1998.07.29 – 2011.11.30) |
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| Prelates of Acre e Purus (Roman Rite) |
Bishop Moacyr Grechi, O.S.M. (later Archbishop)
(1972.07.10 – 1986.02.15) (see above) |
Bishop Giocondo María Grotti, O.S.M.
(1962.11.16 – 1971.09.28) | Born: | 1928.03.13 (Pieve di Budrio, Italy) | | Ordained Priest: | 1952.06.07 | | Consecrated Bishop: | 1965.08.22 | | Died: | 1971.09.28 (Sena Madureira, AC, Brazil † 43) |
| Bishop-Prelate of Acre e Purus (Brazil) (1962.11.16 – 1971.09.28) Titular Bishop of Thunigaba (1965.07.08 – 1971.09.28) |
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Bishop Antônio Julio María Mattioli, S.M.
(1958.04.26 – 1962.04.13) | Born: | 1902.07.20 (Serra Capanne, Italy) | | Ordained Priest: | 1925.08.09 | | Consecrated Bishop: | 1948.07.25 | | Died: | 1962.04.13 († 59) |
| Apostolic Administrator of São Peregrino Laziosi no Alto Acre e Alto Purus (Brazil) (1941 – 1948.01.10) Bishop-Prelate of São Peregrino Laziosi no Alto Acre e Alto Purus (Brazil) (1948.01.10 – 1958.04.26) Titular Bishop of Lacedæmonia (1948.01.10 – 1962.04.13) Bishop-Prelate of Acre e Purus (Brazil) (1958.04.26 – 1962.04.13) |
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| Prelates of São Peregrino Laziosi no Alto Acre e Alto Purus (Roman Rite) |
Bishop Antônio Julio María Mattioli, S.M.
(1948.01.10 – 1958.04.26) (see above) |
Fr. Antônio Julio María Mattioli, S.M. (later Bishop)
(Apostolic Administrator 1941 – 1948.01.10) |
Bishop Próspero Maria Gustavo Bernardi, O.S.M.
(1926.12.10 – 1940) | Born: | 1870.12.13 (Bologna, Italy) | | Ordained Priest: | 1894.05.19 | | Consecrated Bishop: | 1920.01.11 | | Died: | 1944.02.01 († 73) |
| Bishop-Prelate of Acre e Purus (Brazil) (1919.12.15 – 1926.12.10) Titular Bishop of Paltus (1919.12.15 – 1944.02.01) Bishop-Prelate of São Peregrino Laziosi no Alto Acre e Alto Purus (Brazil) (1926.12.10 – 1940) |
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| Prelates of Acre e Purus (Roman Rite) |
Bishop Próspero Maria Gustavo Bernardi, O.S.M.
(1919.12.15 – 1926.12.10) (see above) |
Bishop Geraldo Van Caloen, O.S.B.
(1906.03.12 – 1907.12.13) |
