| Diocese | Type | Date Vacant | Last Bishop | Event |
|---|
| Santi Ambrogio e Carlo | Cardinal-Priest Title | 5 Aug 2017 | Dionigi Tettamanzi † | Died, Archbishop Emeritus of Milano {Milan} |
| Santi Domenico e Sisto | Cardinal Deaconry | 31 Mar 2016 | Georges Marie Martin Cottier, O.P. † | Died |
| San Filippo Neri in Eurosia | Cardinal Deaconry | 22 Apr 2017 | Attilio Nicora † | Died, President Emeritus of the Administration of the Patrimony of the Apostolic See |
| Gesů Buon Pastore alla Montagnola | Cardinal Deaconry | 9 Sep 2017 | Velasio De Paolis, C.S. † | Died, President Emeritus of the Prefecture for the Economic Affairs of the Holy See |
| San Giovanni Battista dei Fiorentini | Cardinal-Priest Title | 6 Sep 2017 | Carlo Caffarra † | Died, Archbishop Emeritus of Bologna |
| San Girolamo della Caritŕ | Cardinal Deaconry | 9 Dec 2014 | Jorge María Mejía † | Died, Archivist Emeritus of the Vatican Secret Archives |
| Sant’Ignazio di Loyola a Campo Marzio | Cardinal Deaconry | 14 Apr 2015 | Roberto Tucci, S.J. † | Died |
| San Lino | Cardinal Deaconry | 16 May 2016 | Giovanni Coppa † | Died, Apostolic Nuncio Emeritus to Czech Republic |
| Santa Lucia del Gonfalone | Cardinal Deaconry | 27 Jul 2014 | Francesco Marchisano † | Died, President Emeritus of the Labour Office of the Apostolic See |
| San Marco | Cardinal-Priest Title | 12 May 2014 | Marco Cé † | Died, Patriarch Emeritus of Venezia {Venice} |
| Santa Maria in Cosmedin | Cardinal Deaconry | 26 Jun 1967 | Francesco Roberti † | Appointed, Cardinal-Priest of Santi XII Apostoli |
| Santa Maria sopra Minerva | Cardinal-Priest Title | 1 Sep 2017 | Cormac Murphy-O’Connor † | Died, Archbishop Emeritus of Westminster, England |
| San Michele Arcangelo | Cardinal Deaconry | 12 Jun 2014 | Javier Lozano Barragán | Appointed, Cardinal-Priest of Santa Dorotea |
| Sant’Onofrio | Cardinal-Priest Title | 9 Dec 2015 | Carlo Furno † | Died, Grand Master Emeritus of the Equestrian Order of the Holy Sepulchre of Jerusalem |
| Santa Pudenziana | Cardinal-Priest Title | 5 Jul 2017 | Joachim Meisner † | Died, Archbishop Emeritus of Köln {Cologne} |
| Santa Sofia a Via Boccea | Cardinal-Priest Title | 31 May 2017 | Lubomyr Husar, M.S.U. † | Died, Major Archbishop Emeritus of Kyiv-Halyč {Kiev} (Ukrainian) |
| Spirito Santo alla Ferratella | Cardinal-Priest Title | 19 Jun 2017 | Ivan Cornelius Dias † | Died, Prefect Emeritus of the Congregation for the Evangelization of Peoples |
| Santi Urbano e Lorenzo a Prima Porta | Cardinal Deaconry | 13 Jan 2017 | Gilberto Agustoni † | Died, Prefect Emeritus of the Apostolic Signatura |
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