| C plus plus | C Plus Plus |
| C Sharp | C-sharp |
| C-PAP | CPAP |
| C.S. Lewis | C.S. Lewis |
| CA Osasuna | CA Osasuna |
| Cabaret | Cabaret |
| Cabinda | Kabinda |
| cabriolet | cabriolet |
| Cache | Cache |
| Cachoeira do Sul | Cachoeira do Sul |
| cadmium | kadmium |
| Caen | Caen |
| Caernarfon Castle | Caernarfon Castle |
| cafe | kafé |
| Caffè latte | Caffelatte |
| café | kafé |
| Cagliari | Cagliari |
| Cahora Bassa | Cabora Bassa |
| Cairnterrier | Cairnterrier |
| Cajun | Cajun |
| Cajón | Cajón |
| Calabrien | Kalabrien |
| Calais | Calais |
| calcium | kalcium |
| Calciumcarbonat | Kalciumkarbonat |
| calciumindhold | kalciumhalt |
| Calcutta | Calcutta |
| Calder Memorial Trophy | Calder Memorial Trophy |
| Caldera | Caldera |
| Caleb | Kaleb |
| Calgary | Calgary |
| Calgary Flames | Calgary Flames |
| Calgary International Airport | Calgary |
| Caliban | Caliban |
| Calicut | Calicut |
| Californien | Kalifornien |
| Californiske Halvø | Baja California |
| californium | californium |
| Caliga | Caliga |
| Caligula | Caligula |
| caliper | bromsok |
| Call of Duty | Call of Duty |
| Callirrhoe | Callirrhoe |
| Callisto | Callisto |
| Calvados | Calvados |
| Calvi | Calvi |
| Calvin Coolidge | Calvin Coolidge |
| Calvin Klein | Calvin Klein |
| Calvin-cyklus | Calvin-cykeln |
| Camarguedeltaet | Camargue |
| Cambodja | Kambodja |
| Cambridge | Cambridge |
| Cambridge Universitet | Universitetet i Cambridge |
| CamelCase | CamelCase |
| Camelot | Camelot |
| Camera lucida | Camera lucida |
| Camera obscura | Camera obscura |
| Camerlengo | Camerlengo |
| Cameron Diaz | Cameron Diaz |
| Cameroun | Kamerun |
| Camilla | Camilla |
| Camille Pissarro | Camille Pissarro |
| Camille Saint-Saëns | Camille Saint-Saëns |
| camouflage | kamouflage |
| camouflere | kamouflera |
| Camp David | Camp David |
| Camp Nou | Camp Nou |
| Campania | Kampanien |
| Campeche | Campeche |
| Campinas | Campinas |
| camping | camping |
| campingplads | camping |
| campingvogn | husvagn |
| Campo Grande | Campo Grande |
| Canaanhund | Canaan dog |
| Canada | Kanada |
| canadagås | kanadagås |
| Canadas flag | Kanadas flagga |
| Canadas historie | Kanadas historia |
| Canadas provinser og territorier | Kanadas provinser och territorier |
| canadier | kanadensare |
| Canadisk Bakkestjerne | Kanadabinka |
| Canadisk dollar | Kanadensisk dollar |
| Canadiske dollar | Kanadensisk dollar |
| Canberra | Canberra |
| Cancer | Cancer |
| Cancún | Cancún |
| Candela | Candela |
| Candide | Candide |
| candyfloss | sockervadd |
| Canella-familien | Vitkanelväxter |
| Canella-ordenen | Canellales |
| Cannabis | Cannabis |
| Cannes | Cannes |
| Cannibal Corpse | Cannibal Corpse |
| Cannonball Adderley | Cannonball Adderley |
| Cannæ | Cannae |
| Canon | Canon |
| Cantabile | Cantabile |
| Cantal | Cantal |
| Canterbury | Canterbury |
| Canterbury Scene | Canterbury scene |
| Cantus firmus | Cantus firmus |
| canyon | kanjon |
| Capability Maturity Model | Capability Maturity Model |
| Cape Breton | Kap Bretonön |
| Cape Canaveral | Cape Canaveral |
| Cape Town | Kapstaden |
| Capitol | Capitolium |
| Capleton | Capleton |
| Capodestra | Capotasto |
| Capoeira | Capoeira |
| Capote | Capote |
| Cappella Musicale Pontificia Sistina | Cappella Musicale Pontificia Sistina |
| Capraia | Capraia |
| Caprera | Isola Caprera |
| Capri | Capri |
| Caprinae | Caprinae |
| Capsaicin | Capsaicin |
| Captain Beefheart | Captain Beefheart |
| Capture the flag | Capture The Flag |
| Carabobo | Carabobo |
| Caracalla | Caracalla |
| Caracas | Caracas |
| Caravelle | Sud Aviation Caravelle |
| Caraş-Severin | Caraş-Severin |
| carbon | kol |
| Carbon copy | Karbonkopia |
| carbondioxid | koldioxid |
| carbonhydrid | kolväte |
| carbonhydridlagertank | kolvätereservoar |
