| cláusula relativa | Relativsatz |
| Clémence Poésy | Clémence Poésy |
| Clément Janequin | Clément Janequin |
| Clément Marot | Clément Marot |
| Cléo de Mérode | Cléo de Mérode |
| clériga | Geistliche |
| clérigo | Geistliche |
| Cléveris | Kleve |
| clímax | Gipfel |
| Clímene | Klymene |
| Clímeno | Klymenos |
| clínica | Beratungsstelle |
| Clínica de reposo | Genesungsheim |
| clínico | stationär |
| Clío | Klio |
| Clístenes | Kleisthenes von Athen |
| Clístenes de Sición | Kleisthenes von Athen |
| clítico | Klitikon |
| clítoris | Kitzler |
| clóset | Schrank |
| clúster | Cluster |
| CML | Chemical Markup Language |
| CMMI | Capability Maturity Model Integration |
| CMTS | Cable Modem Termination System |
| CN | CN |
| CNC | CNC |
| Cneo Cornelio Escipión Asina | Gnaeus Cornelius Scipio Asina |
| Cneo Cornelio Escipión Calvo | Gnaeus Cornelius Scipio Calvus |
| Cneo Domicio Calvino | Gnaeus Domitius Calvinus |
| Cneo Julio Agrícola | Gnaeus Iulius Agricola |
| Cneo Lucio Mummio | Lucius Mummius |
| Cneo Octavio | Gnaeus Octavius |
| Cneo Papirio Carbón | Gnaeus Papirius Carbo |
| Cneo Pompeyo el Joven | Gnaeus Pompeius der Jüngere |
| Cneo Pompeyo Magno | Gnaeus Pompeius Magnus |
| Cnicus benedictus | Benediktenkraut |
| Cnidaria | Nesseltiere |
| CNN | Cable News Network |
| Cnosos | Knossos |
| CO | CO |
| co-incineración | Mitverbrennung |
| Co-NP | Co-NP |
| coa | Gaunersprache |
| coacción | Druck |
| coacusada | Mitangeklagte |
| coacusado | Mitangeklagte |
| coadjutor | Koadjutor |
| coagulación | Gerinnen |
| Coagulación intravascular diseminada | Disseminierte intravasale Koagulopathie |
| coagulado | gerinnt |
| coagulamiento | Koagulation |
| coagulante | Gerinnstoff |
| coagular | eindicken |
