| Date of Death | Deceased Persons (30) |
| 2015 | |
| 2015 | |
| 2015.01.12 | Priest of Legnica (Poland) (? – 2015.01.12) Chaplain of His Holiness (2004.04.04 – 2015.01.12) |
| 2015.01.14 | Priest of Legnica (Poland) (? – 2015.01.14) Chaplain of His Holiness (1969.01.14 – 2015.01.14) |
| 2015.02.22 | Priest of Ivrea (Italy) (1948.08.29 – 1972.01.07) Chaplain of His Holiness (1963.09.26 – 1970.06.13) Prelate of Honour of His Holiness (1970.06.13 – 2015.02.22) Prelate Auditor of Tribunal of the Roman Rota (1972.01.07 – 1996) President of Appeals Court of Vatican City State (1999? – 2003) Protonotary Apostolic de numero of Prefecture of the Papal Household (1999.08.24 – 2015.02.22) |
| 2015.04.15 | Apostolic Visitator outside of Belarus of the Belarussians (1986.06.30 – 2015.04.15) |
| 2015.04.21 | Superior General of Congregation of Mariannhill Missionaries (1979 – 1990) |
| 2015.06.07 | Apostolic Commissioner for Franciscan Friars of the Immaculate (2013.08.12 – 2015.06.07) |
| 2015.06.17 | Prelate of Honour of His Holiness (1992.11.03 – 2015.06.17) |
| 2015.06.23 | Superior General of Missionaries of Charity (1997.03.13 – 2009.03.24) |
| 2015.06.25 | Bishop of Girardota (Colombia) (2006.04.24 – 2006.06.10 not possessed) |
| 2015.06.27 | Priest of Lucca (Italy) (? – 2015.06.27) Chaplain of His Holiness (1974.11.20 – 2015.06.27) |
| 2015.06.29 | Priest of Gdańsk (Poland) (? – 2015.06.29) Chaplain of His Holiness (2001.07.09 – 2015.06.29) |
| 2015.07.02 | Priest of Toronto (Canada) (? – 2015.07.02) Prelate of Honour of His Holiness (1979.09.12 – 2015.07.02) |
| 2015.07.04 | |
| 2015.07.04 | Superior General of Missionaries of Workers (? – 2015.07.04) |
| 2015.08.03 | Priest of Taipei 臺北 (Taiwan) (1955.06.29 – 2015.08.03) Prelate of Honour of His Holiness (1996.06.10 – 2015.08.03) |
| 2015.08.10 | Priest of San Sebastián (Spain) (1957 – 2015.08.10) Chaplain of His Holiness (1976.06.28 – 1986.09.11) Prelate of Honour of His Holiness (1986.09.11 – 2015.08.10) Undersecretary of Congregation for Institutes of Consecrated Life and for Societies of Apostolic Life (1988 – 2003) |
| 2015.08.26 | Abbot Ordinary of Claraval (Brazil) (1976.12.07 – 1999.03.24) |
| 2015.09.05 | Priest of Baltimore (USA) (1975 – 2015.09.05) Prelate of Honour of His Holiness (1995.12.19 – 2013.02.13) Protonotary Apostolic Supernumerary (2013.02.13 – 2015.09.05) |
| 2015.09.19 | Priest of Meath (Ireland) (? – 2015.09.19) Prelate of Honour of His Holiness (1994.09.21 – 2015.09.19) |
| 2015.09.24 | Priest of Lanusei (Italy) (? – 2015.09.24) Chaplain of His Holiness (1997.01.26 – 2015.09.24) |
| 2015.10.19 | Priest of Legnica (Poland) (? – 2015.10.19) Chaplain of His Holiness (2007.03.24 – 2015.10.19) |
| 2015.11.10 | Priest of Münster (Germany) (1960 – 2015.11.10) Prelate of Honour of His Holiness (1983.12.03 – 1989.04.29) Protonotary Apostolic Supernumerary (1989.04.29 – 2015.11.10) |
| 2015.11.15 | Priest of Hamilton (Canada) (1956.05.26 – 2015.11.15) Prelate of Honour of His Holiness (1988.03.21 – 2011.04.15) Protonotary Apostolic Supernumerary (2011.04.15 – 2015.11.15) |
| 2015.12.12 | Priest of Toronto (Canada) (1956.05.26 – 2015.12.12) Prelate of Honour of His Holiness (1987.05.09 – 2015.12.12) |
| 2015.12.17 | Abbot Ordinary of Saint-Maurice d’Agaune (Switzerland) ([1999.04.05] 1999.05.14 – 2015.03.18) Abbot Ordinary of Swiss Congregation of Canons Regular of Saint Maurice of Agaune (1999.05.14 – 2015.03.18) |
| 2015.12.17 | Priest of Hsinchu 新竹 (Taiwan) (? – 2015.12.17) Chaplain of His Holiness (1994.02.24 – 2015.12.17) |
| 2015.12.17 | Superior General of Sisters of the Order of Saint Basil the Great (1971 – 1983) |
| 2015.12.24 | Superior General of Congregation of the Mission (Vincentians, Lazarists) (1980 – 1992) |
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