Ordained
Bishop | Years | Name | Current Title |
|---|
| 3 Oct 1971 | 53.50
| Bishop Lawrence Thienchai Samanchit | Bishop Emeritus of Chanthaburi |
| 3 Jun 1973 | 51.83
| Michael Michai Cardinal Kitbunchu | Archbishop Emeritus of Bangkok |
| 18 Jun 1989 | 35.79
| Archbishop Luigi Bressan | Archbishop Emeritus of Trento, Italy |
| 15 Nov 1992 | 32.38
| Archbishop Adriano Bernardini | Apostolic Nuncio |
| 6 Jan 1999 | 26.24
| Archbishop Salvatore Pennacchio | President of the Pontifical Ecclesiastical Academy, Roman Curia |
| 23 Jan 1999 | 26.19
| Archbishop Louis Chamniern Santisukniram | Archbishop Emeritus of Thare and Nonseng |
| 6 Jan 2002 | 23.24
| Archbishop Giovanni d’Aniello | Apostolic Nuncio to Russian Federation |
| 6 Jan 2003 | 22.24
| Archbishop Paul Tschang In-Nam | Apostolic Nuncio |
| 28 Nov 2004 | 20.35
| Bishop Joseph Prathan Sridarunsil, S.D.B. | Bishop Emeritus of Surat Thani |
| 27 Jun 2006 | 18.77
| Bishop Philip Banchong Chaiyara, C.Ss.R. | Bishop Emeritus of Ubon Ratchathani |
| 10 Feb 2007 | 18.15
| Bishop Joseph Chusak Sirisut | Bishop of Nakhon Ratchasima |
| 2 Jun 2007 | 17.83
| Francis Xavier Kriengsak Cardinal Kovithavanij | Archbishop Emeritus of Bangkok |
| 1 May 2009 | 15.92
| Archbishop Francis Xavier Vira Arpondratana | Archbishop of Bangkok |
| 4 Jul 2009 | 15.75
| Bishop Silvio Siripong Charatsri | Bishop of Ratchaburi |
| 12 Sep 2009 | 15.56
| Bishop Joseph Pibul Visitnondachai | Bishop Emeritus of Nakhon Sawan |
| 6 Feb 2010 | 15.16
| Bishop Joseph Luechai Thatwisai | Bishop of Udon Thani |
| 19 Mar 2016 | 9.04
| Archbishop Peter Bryan Wells | Apostolic Nuncio to Thailand |
| 7 Jul 2018 | 6.74
| Bishop Joseph Vuthilert Haelom | Bishop of Chiang Rai |
| 15 Aug 2020 | 4.63
| Archbishop Anthony Weradet Chaiseri | Archbishop of Thare and Nonseng |
| 24 Feb 2024 | 1.11
| Bishop Stephen Boonlert Phromsena | Bishop of Ubon Ratchathani |
| 23 Mar 2024 | 1.03
| Bishop Paul Tawat Singsa | Bishop of Nakhon Sawan |
| 28 Sep 2024 | 0.51
| Bishop Paul Trairong Multree | Bishop of Surat Thani |
| 8 Feb 2025 | 0.15
| Bishop Philip Adisak Phorn-Ngam | Bishop of Chanthaburi |
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