| commissario di bordo | commissaire du bord |
| Commissario Maigret | Commissaire Maigret |
| Commissario politico | Commissaire politique |
| commissione | conseil |
| Commissione Barroso | Commission Barroso |
| Commissione Bulgara per i Toponimi Antartici | Commission bulgare pour des toponymes antarctiques |
| Commissione Delors | Commission Delors |
| Commissione Elettrotecnica Internazionale | Commission électrotechnique internationale |
| Commissione Europea | Commission Européenne |
| Commissione internazionale per la caccia alle balene | Commission baleinière internationale |
| Commissione Malfatti | Commission Malfatti |
| Commissione Prodi | Commission Prodi |
| Commissione Santer | Commission Santer |
| commissione speciale | détachement spécial |
| Commissione Trilaterale | Commission Trilatérale |
| Commissione Warren | Commission Warren |
| Commissioni Operaie | Comisiones Obreras |
| commisurare | adapter |
| commisurato | en proportion |
| Committee on Data for Science and Technology | CODATA |
| Commodore International | Commodore International |
| Commodore PET | Commodore PET |
| Commodores | Commodores |
| commodoro | commodore |
| Common Desktop Environment | Common Desktop Environment |
| Common Development and Distribution License | Common Development and Distribution License |
| Common Gateway Interface | Common Gateway Interface |
| Common Language Runtime | Common Language Runtime |
| Common Law | Common law |
| Common Public License | Common Public Licence |
| Common rail | Common rail |
| Common unix printing system | Common Unix Printing System |
| Commonwealth | Commonwealth |
| Commonwealth delle nazioni | Commonwealth |
| Commonwealth Stadium | Commonwealth Stadium |
| commossa | ému |
| commosso | affecté |
| commovente | captivant |
