| Date of Death | Deceased Bishops (106) |
| 1980.01.11 | Archbishop of Mossul of the Chaldeans (Iraq) (1967.02.14 – 1980.01.11) |
| 1980.01.12 | Titular Bishop of Amyzon (1956.12.17 – 1980.01.12) Apostolic Administrator of Pult (Albania) (1956.12.17 – 1980.01.12) |
| 1980.01.14 | Metropolitan Archbishop emeritus of Tabora (Tanzania) (1953.03.25 – 1959.12.21) |
| 1980.01.14 | |
| 1980.01.15 | Bishop emeritus of Avellino (Italy) (1949.11.22 – 1967.06.02) |
| 1980.01.19 | Bishop of Socorro y San Gil (Colombia) (1975.10.25 – 1980.01.19) |
| 1980.01.22 | |
| 1980.01.22 | Vicar Apostolic emeritus of Stanleyville (Congo-Kinshasa) (1949.03.10 – 1958) |
| 1980.01.28 | Bishop emeritus of Syros (Greece) (1947.02.22 – 1974.06.27) Bishop emeritus of Santorini (Greece) (1947.02.22 – 1974.06.27) |
| 1980.01.30 | Titular Archbishop of Rhizæum (1949.05.21 – 1980.01.30) |
| 1980.02.01 | Titular Archbishop of Thugga (1967.01.02 – 1980.02.01) |
| 1980.02.08 | Bishop of Zhouzhi 盩厔 (China) (1951.05.10 – 1980.02.08) |
| 1980.02.20 | |
| 1980.02.24 | Bishop emeritus of Galway and Kilmacduagh (Ireland) (1937.08.06 – 1976) |
| 1980.02.25 | Metropolitan Archbishop emeritus of Avignon (France) (1957.04.22 – 1970.06.25) |
| 1980.02.29 | |
| 1980.03.02 | Bishop emeritus of Lamego (Portugal) (1948.10.29 – 1971.02.02) |
| 1980.03.07 | Bishop of Concepción (Argentina) (1963.08.12 – 1980.03.07) |
| 1980.03.07 | Bishop emeritus of Bragança e Miranda (Portugal) (1938.12.08 – 1965.02.20) |
| 1980.03.09 | Titular Archbishop of Larissa in Thessalia (1960.09.27 – 1980.03.09) |
| 1980.03.11 | Bishop of Fenyang 汾陽 (China) (1962 – 1980.03.11▼) |
| 1980.03.13 | Bishop emeritus of Visakhapatnam (India) (1950.10.21 – 1966.10.04) |
| 1980.03.24 | Metropolitan Archbishop of San Salvador (El Salvador) (1977.02.03 – 1980.03.24) |
| 1980.03.25 | Metropolitan Archbishop emeritus of Ljubljana (Slovenia) (1968.11.22 – 1980.02.23) |
| 1980.03.28 | Metropolitan Archbishop emeritus of Cagayan de Oro (Philippines) (1951.06.29 – 1970.10.13) |
| 1980.03.28 | Bishop of Saint Nicholas of Chicago of the Ukrainians (USA) (1961.07.14 – 1980.03.28) |
| 1980.04.04 | Bishop emeritus of Baton Rouge (USA) (1961.08.10 – 1974.03.21) |
| 1980.04.08 | Auxiliary Bishop of Guatemala (Guatemala) (1968.01.08 – 1980.04.08) |
| 1980.04.15 | Archbishop emeritus of Mossul of the Syriacs (Iraq) ([1952.02.20] 1952.03.07 – 1959.08.23) Auxiliary Bishop emeritus of Antioch of the Syriacs (Lebanon) (1959.08.23 – 1971) |
| 1980.04.17 | |
| 1980.04.23 | Titular Archbishop of Vazari (1965.10.27 – 1980.04.23) |
| 1980.04.24 | Vicar Apostolic emeritus of Kota Kinabalu (Malaysia) (1947.01.18 – 1972) |
| 1980.04.28 | Titular Archbishop of Bilta (1961.10.14 – 1980.04.28) |
| 1980.04.30 | Auxiliary Bishop of Rochester (USA) (1968.01.05 – 1980.04.30) |
| 1980.05.04 | Vicar Apostolic emeritus of Northern Norway (Norway) (1955.02.18 – 1976) |
| 1980.05.06 | Metropolitan Archbishop of Fuzhou 福州 (China) (1946.06.13 – 1980.05.06) |
| 1980.05.08 | Bishop emeritus of Derry (Northern Ireland) (1939.08.05 – 1973.04.13) |
| 1980.05.08 | Bishop emeritus of Tagbilaran (Philippines) (1951.11.12 – 1976) |
| 1980.05.12 | Metropolitan Archbishop of San Juan de Cuyo (Argentina) (1966.04.28 – 1980.05.12) |
| 1980.05.16 | Metropolitan Archbishop emeritus of Monreale (Italy) (1961.04.28 – 1978) |
| 1980.05.20 | |
| 1980.05.24 | |
| 1980.06.03 | Coadjutor Bishop-Prelate emeritus of Rio Negro (Brazil) (1962.05.21 – 1967.06.13) |
| 1980.06.10 | |
| 1980.06.15 | Cardinal-Deacon of S. Giorgio in Velabro (1973.03.05 – 1980.06.15) President of Secretariat for Non-Christians (1973.03.06 – 1980.06.15) |
| 1980.06.18 | Vicar Apostolic emeritus of Dakar (Senegal) (1927.01.24 – 1946.12.12) |
| 1980.06.18 | Bishop of Mariannhill (South Africa) (1970.05.21 – 1980.06.18) |
| 1980.06.27 | Metropolitan Archbishop emeritus of Luanda (Angola) (1940.09.04 – 1966.11.17) Bishop emeritus of São Tomé e Príncipe (São Tomé and Príncipe) (1941.01.18 – 1966.11.17) |
| 1980.06.30 | Archbishop Military Vicar emeritus of Peru (Peru) (1956.12.17 – 1967) |
| 1980.07.02 | Bishop-Prelate of Deán Funes (Argentina) (1980.01.25 – 1980.07.02) |
| 1980.07.08 | Bishop of Sete Lagoas (Brazil) (1964.06.04 – 1980.07.08) |
| 1980.07.15 | Bishop emeritus of Ponta Grossa (Brazil) (1929.12.16 – 1965.03.20) |
| 1980.07.17 | Bishop of Santa Rosa de Copán (Honduras) (1962.06.10 – 1980.07.17) |
| 1980.07.17 | Auxiliary Bishop of Aachen (Germany) (1977.12.02 – 1980.07.17) |
| 1980.07.21 | Vicar Apostolic emeritus of Heliopolis of Egypt (Egypt) (1959.04.07 – 1978.04.29) |
| 1980.07.21 | Bishop emeritus of Espinal (Colombia) (1956.12.22 – 1974.12.12) |
| 1980.07.26 | |
| 1980.07.28 | Bishop emeritus of Trapani (Italy) (1961.05.15 – 1978.07.31) |
| 1980.07.30 | Bishop of Nocera Umbra–Gualdo Tadino (Italy) (1974.12.12 – 1980.07.30) |
| 1980.08.02 | Bishop emeritus of Calahorra y La Calzada–Logroño (Spain) (1959.03.09 – 1976.12.20) |
| 1980.08.06 | Bishop emeritus of Nagoya 名古屋 (Japan) (1962.04.16 – 1969.06.26) |
| 1980.08.10 | |
| 1980.08.12 | Bishop of Santiago del Estero (Argentina) (1961.07.11 – 1980.08.12) |
| 1980.08.13 | Metropolitan Archbishop emeritus of Kasama (Zambia) (1967.06.12 – 1973.02.22) |
| 1980.08.15 | Metropolitan Archbishop emeritus of Zamboanga (Philippines) (1966.08.12 – 1973.08.22) |
| 1980.08.16 | |
| 1980.08.17 | Bishop of Abengourou (Cote d’Ivoire) (1979.01.12 – 1980.08.17) |
| 1980.08.19 | Bishop emeritus of Cúcuta (Colombia) (1959.07.22 – 1970.07.27) |
| 1980.08.26 | |
| 1980.08.26 | Bishop of Ningxia 寧夏 (China) (1946.04.11 – 1980.08.26) |
| 1980.09.16 | |
| 1980.09.16 | Bishop emeritus of Roermond (Netherlands) (1959.01.26 – 1970.12.29) |
| 1980.09.18 | Bishop of San Fernando de La Union (Philippines) (1970.02.06 – 1980.09.18) |
| 1980.09.19 | Bishop emeritus of Machala (Ecuador) (1969.01.31 – 1978.01.30) |
| 1980.09.20 | Military Vicar of Paraguay (Paraguay) (1972.02.01 – 1980.09.20) |
| 1980.09.27 | Bishop emeritus of Lomas de Zamora (Argentina) (1957.03.13 – 1963.04.10) |
| 1980.09.29 | Bishop emeritus of Alba Iulia (Romania) (1938.12.24 – 1980.04.02) Archbishop ad personam (1949.07.06 – 1980.09.29) |
| 1980.09.29 | Auxiliary Bishop of Philadelphia (USA) (1962.06.22 – 1980.09.29) |
| 1980.10.01 | |
| 1980.10.04 | Auxiliary Bishop of Montréal (Canada) (1941.06.28 – 1980.10.04) |
| 1980.10.06 | Metropolitan Archbishop emeritus of Trujillo (Peru) (1965.12.06 – 1976) |
| 1980.10.07 | Bishop of Sekondi–Takoradi (Ghana) (1969.11.20 – 1980.10.07) |
| 1980.10.10 | Vicar Apostolic emeritus of Monrovia (Liberia) (1960.12.20 – 1976.10.28) |
| 1980.10.11 | Bishop of Oppido Mamertina–Palmi (Italy) (1979.06.10 – 1980.10.11) |
| 1980.10.15 | Ordinary of Ordinariaat voor buitenlandse studenten in België (Belgium) (1965.08.31 – 1980.10.15) Secretary of Pontifical Biblical Commission (1973 – 1980.10.15) |
| 1980.10.19 | Archbishop-Bishop of Los Teques (Venezuela) (1965.07.25 – 1980.10.19) |
| 1980.10.22 | Bishop emeritus of Malang (Indonesia) (1961.01.03 – 1973.03.01) |
| 1980.10.22 | Bishop emeritus of Fort William (Canada) (1952.05.14 – 1969.09.18) |
| 1980.10.27 | Auxiliary Bishop emeritus of Napoli (Italy) (1959.04.27 – 1970) |
| 1980.10.29 | Archbishop-Bishop of Fossano (Italy) (1963.09.17 – 1980.10.29) |
| 1980.11.01 | Archbishop emeritus of Catanzaro (Italy) (1956.01.20 – 1980) Archbishop-Bishop emeritus of Squillace (Italy) (1950.06.16 – 1980) |
| 1980.11.02 | Metropolitan Archbishop emeritus of Brisbane (Australia) (1965.04.10 – 1973.03.05) |
| 1980.11.02 | Auxiliary Bishop emeritus of Sandomierz (Poland) (1957.06.03 – 1968.02.20) |
| 1980.11.07 | Bishop emeritus of Sintang (Indonesia) (1961.05.16 – 1973.05.25) |
| 1980.11.13 | Archbishop emeritus of Rossano (Italy) (1949.01.13 – 1971.11.18) |
| 1980.11.13 | Vicar Apostolic emeritus of Vientiane (Laos) (1952.03.13 – 1975) |
| 1980.11.23 | Archbishop-Bishop of Veroli–Frosinone (Italy) (1973.12.21 – 1980.11.23) Archbishop-Bishop of Ferentino (Italy) (1973.12.21 – 1980.11.23) |
| 1980.11.25 | Auxiliary Bishop of Łomża (Poland) (1952.02.06 – 1980.11.25) |
| 1980.11.28 | |
| 1980.12.04 | Bishop emeritus of Huajuapan de León (Mexico) (1952.05.12 – 1967.07.25) |
| 1980.12.19 | |
| 1980.12.19 | |
| 1980.12.19 | Auxiliary Bishop of the Vicariate of Rome of Roma (Italy) (1966.02.11 – 1980.12.19) |
| 1980.12.26 | Cardinal-Priest of S. Giuseppe in Via Trionfale pro hac vice Title (1973.03.05 – 1980.12.26) President of Prefecture for the Economic Affairs of the Holy See (1968.01.13 – 1980.12.26) Camerlengo of Sacred College of Cardinals (1979.06.30 – 1980.12.26) |
| 1980.12.30 | |
| 1980.12.30 |
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