Fra' Sir Emmanuel de Rohan-Polduc (April 18, 1725 la Mancha, Spain - July 14, 1797 Valletta, Malta) was a member of the wealthy and influential Rohan family of France, and 70th Prince and Grand Master of the Order of Malta from 1775 to 1797.
Rohan-Polduc succeeded the unpopular Grand Master Francisco Ximenes de Texada. During his rule Fort Tigne was built and St. Lucian's Tower and battery were upgraded, and as result of this upgrading the tower was renamed Fort Rohan.
Rohan-Polduc also authored the Code de Rohan, a constitutional law book published in two volumes titled Saint John of Jerusalem of Rhodes of Malta in 1782.
The Grand Master was also responsible for the publication of the Codice Municipale di Malta in 1784.
Rohan-Polduc elevated the village of Żebbuġ to the status of city, naming it Città de Rohan. To commemorate this event the people of Żebbuġ constructed an archway.
| Preceded by Francisco Ximenes de Texada |
Grand Master of the Knights Hospitaller 1775–1797 |
Succeeded by Ferdinand von Hompesch zu Bolheim |