| catheter | sonde |
| cathetus | cathète |
| Cathinone | Cathinone |
| cathode | cathode |
| Cathode rays | Rayons cathodiques |
| Cathodic protection | Protection cathodique |
| catholic | catholique |
| Catholic Apostolic Church | Église catholique apostolique |
| Catholic Charismatic Renewal | Renouvellement charismatique catholique |
| Catholic Church | Église catholique romaine |
| Catholic Diocese of the Old Catholics in Germany | Église vieille-catholique |
| Catholic Encyclopedia | Catholic Encyclopedia |
| Catholic League | Ligue catholique |
| Catholic marriage | Mariage dans la tradition chrétienne |
| Catholic Monarchs | Rois catholiques |
| Catholic order | Liste des congrégations catholiques |
| Catholic sacraments | Sacrement |
| Catholic University of Brussels | Université catholique de Bruxelles |
| Catholic University of Leuven | Université catholique de Louvain |
| Catholic University of Louvain | Université catholique de Louvain |
| Catholic University of Lyon | Université catholique de Lyon |
| Catholic-National Movement | Mouvement national-catholique |
| Catholicism | catholicisme |
| Catholicos Baselios Thomas I | Baselios Thomas Ier |
| Catholisism | Catholicisme |
| Cathy | Catherine |
| Cathy Berberian | Cathy Berberian |
| Cathy Freeman | Cathy Freeman |
| Cathédrale Notre-Dame de Noyon | Cathédrale Notre-Dame de Noyon |
| Cathédrale Saint-André de Bordeaux | Cathédrale Saint-André de Bordeaux |
| CATIA | CATIA |
| Catiline | Catilina |
| Catiline Orations | Les Catilinaires |
| Catinaccio group | Roseraie |
| cation | cation |
| catkin | chaton |
| catlike | félin |
| catmint | chataire |
| Cato | Cato |
| Cato Institute | Cato Institute |
| Catoblepas | Catoblépas |
| Catoptric systems | Systeme catoptrique |
| Catopuma | Catopuma |
| Catostomidae | Catostomidae |
| Catregory | Espèce |
| Catreus | Catrée |
| Catrina | Catrina |
| Catscratch | Chadébloc |
| Catskill | Catskill |
| Catskill Mountains | Montagnes Catskill |
| catsup | ketchup |
| cattail | quenouille |
| cattiness | animosité |
| cattle | bétail |
| cattle cake | fourrage |
