Ordained Bishop | Years | Name | Current Title |
| Most Senior |
| 21 Jan 1967 |
| Bishop Gérard-Joseph Deschamps, S.M.M. | Bishop Emeritus of Bereina |
| 2 Jul 1970 |
| Bishop Desmond Charles Moore, M.S.C. | Bishop Emeritus of Alotau-Sideia |
| 4 Jun 1977 |
| Andrea Cardinal Cordero Lanza di Montezemolo | Archpriest Emeritus of the Basilica di San Paolo fuori le Mura {Saint Paul Outside-the-Walls Basilica}, Roman Curia |
| 15 Aug 1978 |
| Archbishop Karl Hesse, M.S.C. | Archbishop Emeritus of Rabaul |
| 19 Mar 1980 |
| Archbishop Benedict To Varpin | Archbishop Emeritus of Madang |
| 2 May 1981 |
| Archbishop Francesco De Nittis | Apostolic Nuncio Emeritus to Uruguay |
| 8 Sep 1982 |
| Archbishop William Joseph Kurtz, S.V.D. | Archbishop Emeritus of Madang |
| 15 Aug 1984 |
| Archbishop Michael Meier, S.V.D. | Archbishop Emeritus of Mount Hagen |
| 6 Oct 1985 |
| Antonio Maria Cardinal Vegliň | President of the Pontifical Council for Pastoral Care of Migrants and Itinerant People, Roman Curia |
| 13 Dec 1985 |
| Bishop Paul John Marx, M.S.C. | Bishop Emeritus of Kerema |
| 10 Feb 1988 |
| Archbishop Brian James Barnes, O.F.M. | Archbishop Emeritus of Port Moresby |
| 23 Feb 1989 |
| Bishop Michael Marai | Bishop Emeritus of Goroka |
| Most Junior |
| 27 Apr 2013 |
| Archbishop Michael Wallace Banach | Apostolic Nuncio to Papua New Guinea |
| 17 Mar 2012 |
| Archbishop Santo Rocco Gangemi | Apostolic Nuncio Emeritus to Solomon Islands |
| 4 Feb 2012 |
| Bishop Donald Francis Lippert, O.F.M. Cap. | Bishop of Mendi |
| 3 Jul 2011 |
| Bishop Rolando Crisostomo Santos, C.M. | Bishop of Alotau-Sideia |
| 9 Oct 2010 |
| Bishop William R. Fey, O.F.M. Cap. | Bishop of Kimbe |
| 14 Feb 2010 |
| Bishop Jean (John) Bosco Baremes, S.M. | Bishop of Port-Vila, Vanuatu, Pacific (Oceania) |
| 8 Mar 2008 |
| Bishop John Doaninoel, S.M. | Auxiliary Bishop of Honiara, Solomon Islands |
| 30 Oct 2007 |
| Bishop Otto Separy | Bishop of Aitape |
| 10 Sep 2007 |
| Bishop Anton Bal | Bishop of Kundiawa |
| 5 May 2007 |
| Bishop Christian Conrad Blouin, C.M.M. | Bishop of Lae |
| 6 Sep 2006 |
| Bishop Bernard Unabali | Bishop of Bougainville |
| 23 May 2006 |
| Archbishop Francisco Montecillo Padilla | Apostolic Nuncio to Tanzania |