| Type: | Cardinal |
| Honorific-Prefix: | His Eminence |
| René-François Régnier | |
| Archbishop of Cambrai | |
| Church: | Roman Catholic Church |
| Archdiocese: | Cambrai |
| See: | Cambrai |
| Appointed: | 30 September 1850 |
| Term End: | 3 January 1881 |
| Predecessor: | Pierre Giraud |
| Successor: | Alfred Duquesnayt |
| Other Post: | Cardinal-Priest of Santissima Trinità al Monte Pincio (1874-81) |
| Ordination: | 19 December 1818 |
| Consecration: | 22 July 1842 |
| Consecrated By: | Denis-Auguste Affre |
| Cardinal: | 22 December 1873 |
| Created Cardinal By: | Pope Pius IX |
| Rank: | Cardinal-Priest |
| Birth Name: | René-François Régnier |
| Birth Date: | 17 July 1794 |
| Birth Place: | Saint-Quentin-lès-Beaurepaire, French First Republic |
| Death Place: | Cambrai, French Third Republic |
| Buried: | Cambrai Cathedral |
| Parents: | François Régnier Renée Périgois |
| Previous Post: | Bishop of Angoulême (1842-50) |
| Motto: | Caritas Christi urget nos |
René-François Régnier (17 July 1794 - 3 January 1881, Rome) was a French cardinal.[1]
Cardinal Rengnier was born on 17 July 1794[2] at Saint-Quentin-les Beaurepaire in the region of Cambrai, France. His parents were François Régnier and Renée Périgois. He was ordained a priest on 22 December 1818. He was consecrated bishop of the Diocese of Angoulême by his predecessor Cardinal Pierre Giraud on 22 July 1842, and succeeded him as archbishop of the Cambrai on 30 September 1850.
Pope Pius IX created him as the Cardinal-Priest of Santissima Trinità dei Monti on 22 December 1873. He died on 3 January 1881 and was buried at the Cathedral of Cambrai.
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