| Bishop Ordinaries of Thailand (18) | Age | Date of
Birth |
 Cardinal Michael Michai Kitbunchu (95), Cardinal-Priest of S. Lorenzo in Panisperna, Protopriest of College of Cardinals and Metropolitan Archbishop emeritus of Bangkok (Thailand) | 95 | 1929.01.25 |
 Bishop Lawrence Thienchai Samanchit (92), Bishop emeritus of Chanthaburi (Thailand) | 92 | 1931.11.28 |
 Archbishop Louis Chamniern Santisukniran (82), Metropolitan Archbishop emeritus of Thare and Nonseng (Thailand) | 82 | 1942.10.30 |
| Bishop Philip Banchong Chaiyara, C.SS.R. (79), Bishop emeritus of Ubon Ratchathani (Thailand) | 79 | 1945.01.30 |
| Bishop Joseph Prathan Sridarunsil, S.D.B. (78), Bishop emeritus of Surat Thani (Thailand) | 78 | 1946.02.09 |
| Bishop Joseph Pibul Visitnondachai (78), Bishop emeritus of Nakhon Sawan (Thailand) | 78 | 1946.06.01 |
 Cardinal Francis Xavier Kriengsak Kovithavanij (75), Cardinal-Priest of S. Maria Addolorata and Metropolitan Archbishop emeritus of Bangkok (Thailand) | 75 | 1949.06.27 |
| Bishop John Bosco Panya Kritcharoen (74), Bishop emeritus of Ratchaburi (Thailand) | 74 | 1949.12.18 |
 Bishop Joseph Vuthilert Haelom (72), Bishop of Chiang Rai (Thailand) | 72 | 1951.12.17 |
| Bishop-elect Philip Adisak Phorn-Ngam (69), Bishop of Chanthaburi (Thailand) | 69 | 1954.11.19 |
| Bishop Francis Xavier Vira Arpondratana (69), Bishop of Chiang Mai (Thailand), Apostolic Administrator of Bangkok (Thailand) and General Secretary of Catholic Bishops’ Conference of Thailand | 69 | 1955.10.03 |
| Bishop Joseph Chusak Sirisut (68), Bishop of Nakhon Ratchasima (Thailand) and President of Catholic Bishops’ Conference of Thailand | 68 | 1956.02.24 |
| Bishop Silvio Siripong Charatsri (64), Bishop of Ratchaburi (Thailand) | 64 | 1959.12.10 |
| Bishop Stephen Boonlert Phromsena (64), Bishop of Ubon Ratchathani (Thailand) | 64 | 1960.02.24 |
| Bishop Joseph Luechai Thatwisai (61), Bishop of Udon Thani (Thailand) | 61 | 1962.12.02 |
 Archbishop Anthony Weradet Chaiseri (61), Metropolitan Archbishop of Thare and Nonseng (Thailand) and Vice-President of Catholic Bishops’ Conference of Thailand | 61 | 1963.06.26 |
| Bishop Paul Tawat Singsa (58), Bishop of Nakhon Sawan (Thailand) | 58 | 1966.03.13 |
| Bishop Paul Trairong Multree (48), Bishop of Surat Thani (Thailand) | 48 | 1976.09.07 |
