| Louis-François Duplessis de Mornay | |
|---|---|
| Bishop of Quebec | |
| Diocese | Quebec |
| Enthroned | 1727 |
| Reign ended | 1733 |
| Predecessor | Jean-Baptiste de La Croix de Chevrières de Saint-Vallier |
| Successor | Pierre-Herman Dosquet |
| Personal details | |
| Born | September 20, 1663 |
| Died | November 28, 1741 (aged 78) |
Louis-François Duplessis de Mornay (September 20, 1663 – November 28, 1741) was bishop of the diocese of Quebec from 1727 to 1733, although he never went to Canada. He sent Bishop Dosquet, who was his coadjutor, to be his administrator. Dosquet followed him as the next bishop of Quebec.