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- Randol Abbey (Abbaye Notre-Dame de Randol), monks (1981-) (Saint-Saturnin, Puy-de-Dôme)
- La Réaule Abbey (Abbaye de la Réaule), monks, Diocese of Lescar
- Rebais Abbey (Abbaye Saint-Pierre de Rebais), monks, Diocese of Meaux
- Redon Abbey (Abbaye Saint-Sauveur de Redon), monks (832-1790), Diocese of Vannes (Redon, Ille-et-Vilaine)
- Reims
- St. Nicasius' Abbey, Reims (Abbaye Saint-Nicaise de Reims), monks, Diocese of Reims.
- St. Peter's Abbey, Reims (Abbaye Saint-Pierre de Reims), nuns, Diocese of Reims
- St. Remigius' Abbey, Reims (Abbaye Saint-Rémi de Reims, later Basilique Saint-Rémi de Reims ), monks, Diocese of Reims
- St. Thierri's Abbey, Reims (Abbaye Saint-Thierri de Reims), monks, Diocese of Reims
- St. Timothy's Abbey, Reims (Abbaye Sainte-Thimotée de Reims)
- Remiremont Abbey (Abbaye Saint-Pierre de Remiremont or Saint-Mont), double monastery (monks and nuns), Diocese of Toul later Diocese of Saint-Dié (Remiremont, Vosges)
- Rennes (Ille-et-Vilaine) Diocese of Rennes:
- Abbey of St. George, Rennes (Abbaye Saint-Georges de Rennes), nuns
- Abbey of St. Melaine, Rennes (Abbaye Saint-Melaine de Rennes), monks
- Reulle Abbey (Abbaye Saint-Orenz de Reulle), monks, Diocese of Tarbes
- Rhuys Abbey (Abbaye de Saint-Gildas de Rhuys), monks, Diocese of Vannes (Rhuys, Morbihan)
- Ribemont Abbey (Abbaye Saint-Nicolas de Ribemont), monks, Diocese of Laon
- Rocamadour Abbey or Roquamadour Abbey (Abbaye Notre-Dame de Rocamadour or Roquemadour), administratively in the Diocese of Tulle but situated in the Diocese of Cahors (Rocamadour)
- Abbey of St. Saturnin, Rodez (Abbaye Saint-Saturnin de Rodez or Abbaye de Saint-Sernin de Rodez), nuns, Diocese of Rodez (Rodez)
- Ronceray Abbey (Abbaye du Ronceray d'Angers or Abbaye Notre-Dame du Ronceray), nuns, Diocese of Angers (1028-?) (Angers)
- Rosans Abbey (Abbaye Notre-Dame de Miséricorde de Rosans), nuns, Diocese of Gap (2002-) (Rosans, Hautes-Alpes)
- Abbey of Our Lady of the Sacred Heart, Rosheim (Abbaye Notre-Dame-du-Sacré-Cœur de Rosheim), nuns (Rosheim, Bas-Rhin)
- Rouen (Diocese of Rouen):
- Abbey of St. Amand, Rouen (Abbaye Saint-Amand de Rouen), nuns
- Abbey of St. Ouen, Rouen (Abbaye Saint-Ouen de Rouen), monks
- Rougemont Abbey (Abbaye de Rougemont), nuns, Diocese of Dijon
- Royal-Lieu Abbey (Abbaye de Royal-Lieu), nuns, Diocese of Soissons
Read more about this topic: List Of Benedictine Monasteries In France