| Type: | Cardinal |
| Honorific Prefix: | His Eminence |
| Louis-Joseph Maurin | |
| Archbishop of Lyon | |
| Church: | Roman Catholic Church |
| Archdiocese: | Lyon |
| See: | Lyon |
| Appointed: | 1 December 1916 |
| Enthroned: | 25 January 1917 |
| Term End: | 16 November 1936 |
| Predecessor: | Hector-Irénée Sévin |
| Successor: | Pierre-Marie Gerlier |
| Other Post: | Cardinal-Priest of Santissima Trinità al Monte Pincio (1916–36) |
| Ordination: | 8 April 1882 |
| Consecration: | 24 October 1911 |
| Consecrated By: | Paulin-Pierre Andrieu |
| Cardinal: | 4 December 1916 |
| Created Cardinal By: | Pope Benedict XV |
| Rank: | Cardinal-Priest |
| Birth Name: | Louis-Joseph Maurin |
| Birth Date: | 15 February 1859 |
| Birth Place: | La Ciotat, Second French Empire |
| Death Place: | Lyon, French Third Republic |
| Buried: | Lyon Cathedral |
| Motto: | Cor Unum et anima una |
| Cardinal Name: | Louis-Joseph Maurin |
| Dipstyle: | His Eminence |
| Offstyle: | Your Eminence |
| See: | Lyon |
Louis-Joseph Maurin (15 February 1859 - 16 November 1936) was a Roman Catholic Cardinal and Archbishop of Lyon.
He was born in La Ciotat to Dominique-François and Joséphine-Françoise Arnaud.[1] He studied in Marseilles and Rome, and obtained a doctorate in theology and a licentiate in canon law.[2]
Maurin was ordained to the priesthood on 8 April 1882 in Rome. He did pastoral work in the diocese of Marseille from 1882 until 1911. On 1 September 1911 Pope Pius X appointed him Bishop of Grenoble, being consecrated by Pierre Andrieu in October of that year.
He remained in Grenoble until Pope Benedict XV appointed him Archbishop of Lyon on 1 December 1916.[3] Three days later he was created and proclaimed Cardinal-Priest of SS. Trinità al Monte Pincio. Cardinal Maurin voted in the conclave of 1922 that elected Pope Pius XI.
He died in office on 16 November 1936 and he is buried in the metropolitan cathedral of Lyon.