Ordained Bishop | Years | Name | Current Title |
| Most Senior |
| 21 Jan 1967 |
| Bishop Gérard-Joseph Deschamps, S.M.M. | Bishop Emeritus of Bereina |
| 5 Mar 1967 |
| Bishop Henry Anthony A. van Lieshout, C.M.M. | Bishop Emeritus of Lae |
| 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 of Rabaul |
| 19 Mar 1980 |
| Archbishop Benedict To Varpin | Archbishop Emeritus of Madang |
| 15 Aug 1980 |
| Bishop Raymond Philip Kalisz, S.V.D. | Bishop Emeritus of Wewak |
| 2 May 1981 |
| Archbishop Francesco De Nittis | Apostolic Nuncio Emeritus to Uruguay |
| 8 Sep 1982 |
| Archbishop William Joseph Kurtz, S.V.D. | Archbishop of Madang |
| 15 Aug 1984 |
| Archbishop Michael Meier, S.V.D. | Archbishop Emeritus of Mount Hagen |
| 6 Oct 1985 |
| Archbishop Antonio Maria 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 of Kerema |
| Most Junior |
| 8 Mar 2008 |
| Bishop John Doaninoel, S.M. | Auxiliary Bishop of Rabaul |
| 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 | Auxiliary Bishop of Bougainville |
| 23 May 2006 |
| Archbishop Francisco Montecillo Padilla | Apostolic Nuncio to Papua New Guinea |
| 29 Sep 2005 |
| Bishop Rochus Josef Tatamai, M.S.C. | Bishop of Bereina |
| 6 Jan 2002 |
| Archbishop Adolfo Tito Yllana | Apostolic Nuncio to Pakistan |
| 8 Sep 2001 |
| Bishop Francesco Panfilo, S.D.B. | Bishop of Alotau-Sideia |
| 11 Feb 2001 |
| Archbishop John Ribat, M.S.C. | Archbishop of Port Moresby |
| 10 Feb 2001 |
| Bishop Cherubim Dambui | Auxiliary Bishop of Port Moresby |
| 30 Sep 2000 |
| Bishop Alphonse Liguori Chaupa | Bishop Emeritus of Kimbe |