L
- Lagny Abbey (Abbaye Saint-Pierre de Lagny), monks, Diocese of Paris (Lagny-sur-Marne, Seine-et-Marne)
- Lagrasse Abbey (Abbaye Sainte-Marie de Lagrasse or Abbaye Notre-Dame de Lagrasse), monks, Diocese of Carcassonne (Lagrasse, Aude)
- Lancharre Abbey ( Abbaye Notre-Dame de Lancharre), nuns, Diocese of Chalon-sur-Saône (Chapaize, Haute-Saône)
- Les Landes Abbey (Abbaye Saint-Rémi des Landes), nuns, Diocese of Chartres
- Landévennec Abbey (Abbaye Saint Guénolé de Landévennec), monks, Diocese of Quimper (Landévennec, Finistère)
- Lantenac Abbey (Abbaye Notre-Dame de Lantenac), monks, Diocese of Saint-Brieuc (La Chèze, Côtes-d'Armor)
- Laon (Aisne) (Diocese of Laon):
- Abbey of St. John, Laon (Abbaye Saint-Jean de Laon), monks
- Abbey of St. Vincent, Laon (Abbaye Saint-Vincent de Laon), monks
- Laval Abbey (Abbaye de Laval), nuns, Diocese of Paris
- Lavaudieu Abbey otherwise Lavaudieu Priory (Abbaye Saint-André de Lavaudieu), nuns, (Lavaudieu, Haute-Loire)
- Lay Abbey (Abbaye de Lay), monks, Diocese of Nancy
- Lectoure Abbey (Abbaye Saint-Geniès de Lectoure) (Lectoure, Gers)
- Lérins Abbey (Abbaye Saint-Honorat de Lérins), monks (Île Saint-Honorat, Alpes-Maritimes)
- Lessay Abbey (Abbaye de Lessay), monks, Diocese of Coutances (Lessay, Manche)
- Lézat Abbey (Abbaye Saint-Pierre de Lézat), monks, Diocese of Pamiers (1295–1317), later Diocese of Rieux (1317-1790) (Lézat-sur-Lèze, Ariège)
- Liessies Abbey (Abbaye de Liessies), monks, Diocese of Cambrai (?-1791) (Liessies, Nord)
- Ligueux Abbey (Abbaye Notre-Dame de Ligueux), nuns, Diocese of Périgueux (Ligueux, Dordogne)
- Ligugé Abbey (Abbaye Saint-Martin de Ligugé), monks (Ligugé, Vienne)
- Limoges (Haute-Vienne) (Diocese of Limoges):
- Abbey of St. Augustine, Limoges (Abbaye Saint-Augustin de Limoges), monks
- Abbey of St. Martial, Limoges (Abbaye Saint-Martial de Limoges), monks (?-1535)
- Abbey of St. Martin, Limoges (Abbaye Saint-Martin de Limoges), monks
- Lire Abbey, see Lyre
- Abbey of St. Désir, Lisieux (Abbaye Saint-Désir de Lisieux), nuns, Diocese of Lisieux (Lisieux, Basse-Normandie)
- Longeville Abbey (Abbaye de Longeville), monks, Diocese of Metz (Longeville, Doubs)
- Longues Abbey (Abbaye Sainte-Marie de Longues), monks, Diocese of Bayeux (Longues-sur-Mer, Calvados
- Lonlay Abbey otherwise Lonlai Abbey (Abbaye de Lonlay or Lonlai), monks, Diocese of Le Mans (Lonlay-l'Abbaye, Orne)
- Lure Abbey (Abbaye Saint-Desle de Lure), monks, Diocese of Besançon (Lure, Haute-Saône)
- Luxeuil Abbey (Abbaye de Luxeuil), monks, Diocese of Besançon (Luxeuil, Haute-Saône)
- Abbey of St. Peter, Lyon (Abbaye de Saint-Pierre-les-Nonnains de Lyon), nuns, Diocese of Lyon (Lyon)
- Lyre Abbey or Lire Abbey (Abbaye Notre-Dame de Lyre or de Lire), monks, Diocese of Évreux (La Vieille-Lyre, Eure)
Read more about this topic: List Of Benedictine Monasteries In France