| Type: | Cardinal |
| Honorific Prefix: | His Eminence |
| Léon-Benoît-Charles Thomas | |
| Archbishop of Rouen | |
| Church: | Roman Catholic Church |
| Archdiocese: | Rouen |
| See: | Rouen |
| Appointed: | 24 March 1884 |
| Term End: | 9 March 1894 |
| Predecessor: | Henri-Marie-Gaston Boisnormand de Bonnechose |
| Successor: | Guillaume-Marie-Romain Sourrieau |
| Other Post: | Cardinal-Priest of Santa Maria Nuova (1893-94) |
| Ordination: | 21 December 1850 |
| Consecration: | 15 May 1867 |
| Consecrated By: | Jean-Baptiste-François-Anne-Thomas Landriot |
| Cardinal: | 16 January 1893 |
| Created Cardinal By: | Pope Leo XIII |
| Rank: | Cardinal-Priest |
| Birth Name: | Léon-Benoît-Charles Thomas |
| Birth Date: | 30 May 1826 |
| Birth Place: | Paray-le-Monial, Autun, French Kingdom |
| Death Place: | Rouen, French Third Republic |
| Buried: | Rouen Cathedral |
| Previous Post: | Bishop of La Rochelle (1867-84) |
| Motto: | Nil forties nil dulcius |
| Coat Of Arms: | Armoiries cardinal Leon Benoit Charles Thomas.svg |
Léon-Benoît-Charles Thomas (1826–1894) was a French cardinal.[1]
He studied in Paris and Rome and earned a doctorate in theology in 1856.
He served as Bishop of La Rochelle (1867–1883) and Archbishop of Rouen (1883–1894).[2]
He died in 1894 and was buried in the chapel of Sainte-Marguerite in Rouen; bombings during WWII damaged his tomb, and his remains were transferred to the crypt of the archbishops in the chapel of the Sainte-Vierge.