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- Ravensberghe Abbey, nuns, diocese of Thérouanne, later diocese of Saint-Omer (1191-?) (Watten, Nord)
- Ré Abbey, also known as Les Châteliers Abbey (Abbaye Notre-Dame-de-Ré dite des Châteliers), diocese of Poitiers (La Flotte, île de Ré, Charente-Maritime)
- Le Reclus Abbey (Abbaye Notre-Dame du Reclus), monks, diocese of Troyes, later diocese of Châlons-en-Champagne (Talus-Saint-Prix, Marne)
- Abbaye Notre-Dame de Réconfort, nuns, diocese of Autun (Nivernais)
- Abbaye du Refuge de Notre-Dame, nuns, diocese of Cambrai
- Reigny Abbey, also known as Vermenton Abbey, monks (1128-1790) (Vermenton, Yonne)
- Le Relec Abbey (Abbaye Notre-Dame du Relec), monks, diocese of Saint-Pol-de-Léon (Plounéour-Ménez, Finistère)
- Rieunette Abbey or Priory (Abbaye or Prieuré Sainte-Marie de Rieunette), nuns, diocese of Carcassonne (1162-1761) (Ladern-sur-Lauquet, Aude)
- Rigny Abbey, monks, diocese of Auxerre
- Le Rivet Abbey (Abbaye Notre-Dame du Rivet), in the Bazadais, monks, later nuns (from 1938), diocese of Bazas (Auros, Gironde)
- La Rivour Abbey, monks, diocese of Troyes
- Les Roches Abbey (Abbaye Notre-Dame des Roches), monks, diocese of Auxerre (Myennes, Nièvre)
- La Rode Abbey, monks, diocese of Lavaur
- Rosières Abbey (Abbaye Notre-Dame de Rosières), monks, diocese of Besançon (La Ferté, Jura)
- Les Rosiers Abbey, otherwise Priory (from 1240) (also Les Roziers), nuns (Séchault, Ardennes)
- Royaumont Abbey, monks, diocese of Beauvais (1229-1790) (Asnières-sur-Oise, Val-d'Oise)
Read more about this topic: List Of Cistercian Monasteries In France