| Caballero | Ritter |
| Cabaret | Cabaret |
| Cabinda | Cabinda |
| cabriolet | Kabriolett |
| CAcert | CAcert |
| Cache | Cache |
| Cachoeira do Sul | Cachoeira do Sul |
| cadmium | Cadmium |
| Caecilius Metellus Pius | Caecilius Metellus Pius |
| Caen | Caen |
| Caesars Palace | Caesars Palace |
| cafe | Café |
| Cafeteria | Mensa |
| Caffè latte | Caffè Latte |
| CAFTA | DR-CAFTA |
| café | Café |
| Café au lait | Milchkaffee |
| Café Tacuba | Café Tacuba |
| Cagliari | Cagliari |
| Cahora Bassa | Cabora-Bassa-Talsperre |
| Cairnterrier | Cairn-Terrier |
| Caissa | Caissa |
| Caisson | Caisson |
| Cajun | Cajun |
| Cajón | Cajón |
| Calabrien | Kalabrien |
| Calais | Calais |
| calcium | Kalzium |
| Calciumcarbid | Kalziumcarbid |
| Calciumcarbonat | Calciumcarbonat |
| calciumindhold | Calciumgehalt |
| Calciumnitrat | Calciumnitrat |
| Calciumphosphat | Calciumphosphat |
| Calcutta | Kolkata |
| Calder Memorial Trophy | Calder Memorial Trophy |
| Caldera | Caldera |
| Caleb | Kaleb |
| Calgary | Calgary |
| Calgary Flames | Calgary Flames |
| Calgary International Airport | Flughafen Calgary |
| Caliban | Caliban |
| Calicut | Kozhikode |
| Californien | Kalifornien |
| Californiske Bugt | Golf von Kalifornien |
| Californiske Golf | Golf von Kalifornien |
| Californiske Halvø | Niederkalifornien |
| californium | Californium |
| Caliga | Caligae |
| Caligula | Caligula |
| caliper | Bremsbacke |
| Call of Duty | Call of Duty |
| Call off the Search | Call Off the Search |
| Callgirl | Callgirl |
| Callirrhoe | Callirrhoe |
| Callisto | Kallisto |
| Calvados | Calvados |
| Calvi | Calvi |
| Calvin Coolidge | Calvin Coolidge |
| Calvin Klein | Calvin Klein |
| Calvin-cyklus | Calvin-Zyklus |
| Calvinisme | Calvinismus |
| Calypso | Calypso |
| CAM-plante | CAM-Pflanze |
| Camarguedeltaet | Camargue |
| Cambodja | Kambodscha |
| Cambridge | Cambridge |
| Cambridge Universitet | Universität Cambridge |
| CamelCase | Binnenmajuskel |
| Camelot | Camelot |
| Camera lucida | Camera lucida |
| Camera obscura | Camera obscura |
| Camerlengo | Camerlengo |
| Cameron Diaz | Cameron Diaz |
| Cameroun | Kamerun |
| Camilla | Camilla |
| Camille Pissarro | Camille Pissarro |
