C
- La Cambre Abbey (Abbaye de la Cambre or Abdij Ter Kameren) at Ixelles, Brussels: Cistercian nuns
- Cambron Abbey (Abbaye de Cambron-Casteau) at Brugelette (Hainaut): Cistercian monks
- Celles Abbey (Abbaye Saint-Hadelin de Celles-sur-Lesse) at Celles, Houyet (Namur): either Benedictine monks, or a men's collegiate foundation
- Chercq Charterhouse (Chartreuse de Chercq) (dissolved) at Chercq near Tournai (Hainaut): Carthusians
- Chevetogne Abbey (Abbaye de Chevetogne) at Ciney (Namur): Benedictine monks of both Latin and Byzantine rites
- Chimay (Hainaut):
- St. Monegonde's Abbey, Chimay (Abbaye Sainte-Monégonde de Chimay) (dissolved): Benedictine monks
- Sts. Peter and Paul's Abbey, Chimay: men's collegiate foundation
- Our Lady of Peace Abbey, Chimay (Abbaye Notre-Dame de la Paix de Chimay): Cistercian nuns, from 1919
- see also Scourmont Abbey
- Clairefontaine Abbey (Abbaye de Clairefontaine) near Arlon (Luxembourg): Trappist nuns
- Cornillon Abbey (Abbaye du Mont-Cornillon) in Liège: Premonstratensian double house
- Cortenberg, see Kortenberg
Read more about this topic: List Of Christian Religious Houses In Belgium