| Cogito ergo sum | Cogito ergo sum |
| cognac | cognac |
| cognition | kognition |
| cognitive | kognitiv |
| Cognitive Behavioral Therapy | Kognitiv adfærdsterapi |
| Cognitive psychology | Kognitionspsykologi |
| Cognitive science | Tænkning |
| Cognitive therapy | Kognitiv adfærdsterapi |
| Cognitivism | Kognitiv psykologi |
| Coimbra | Coimbra |
| coin | mønt |
| Coin flipping | Plat eller krone |
| Coin toss | Plat eller krone |
| coinsurance | selvrisiko |
| Cointegration | Kointegration |
| coir | kor |
| Coitus reservatus | Coitus reservatus |
| Cojedes | Cojedes |
| coke | koks |
| Col du Tourmalet | Col du Tourmalet |
| cola | cola |
| Colas | Kolanød |
| Colchester | Cambridge |
| Colchis | Kolchis |
| cold | forkølelse |
| Cold cut | Pålæg |
| Cold food | Pålæg |
| cold fusion | kold fusion |
| Cold inflation pressure | Dæktryk |
| Cold open | Cold open |
| cold war | kolde krig |
| Cold War and its origins | Den kolde krig |
| cold-blooded | koldblodig |
| Coldplay | Coldplay |
| Coleman Hawkins | Coleman Hawkins |
| Coleoptera | Biller |
| coliform bacterium | colibakterier |
| Coliidae | Musefugle |
| Colima | Colima |
| Colin Farrell | Colin Farrell |
| Colin Firth | Colin Firth |
| Colin Greenwood | Colin Greenwood |
| Colin Maclaurin | Colin Maclaurin |
| Colin McRae | Colin McRae |
| Colin Powell | Colin Powell |
| colina | bakke |
| collaborate | samarbejde |
| Collage | Collage |
| Collagen | Kollagen |
| Collapsar | Sort hul |
| collar | flip |
| collarbone | kraveben |
| collared dove | tyrkerdue |
| collared peccary | halsbåndnavlesvin |
| Collatz conjecture | Collatz-formodningen |
| colleague | kollega |
| collect | samle |
| Collectible card game | Samlekortspil |
| collection | samling |
| collective wastewater treatment | kollektiv spildevandsrensning |
| Colleen McCullough | Colleen McCullough |
| College | Seminarium |
| College of Europe | Europakollegiet |
| College of Pontiffs | Pontifikalkollegiet |
| Collembola | Springhaler |
| collie | collie |
| colloid | kolloid |
| colloidal state | kolloid tilstand |
| colloquial | dagligsprog |
| Cologne | Köln |
| Colombes | Colombes |
| Colombia | Colombia |
| Colombo | Colombo |
| Colon | Tyktarm |
| colonel | oberst |
| Colonel General | Generaloberst |
| Colonel Jorgen | Oberst Jorgen |
| Colonel Sun | Colonel Sun |
| Colonel Tom Parker | Tom Parker |
| Colonia | Koloni |
| Colonia Department | Koloni |
| colonial | kolonial |
| colonialism | kolonialisme |
| colonisation | kolonisering |
| colonist | kolonist |
| Colonna family | Kolonne |
| colony | koloni |
| Colony of Aden | Aden |
| Colony of British Columbia | Britisk Columbia |
| Colony of Natal | Natal |
| Colony of Virginia | Virginia |
| color | farve |
| Color balance | Hvidbalance |
| color blind | farveblind |
| Color blindness | Farveblindhed |
| Color charge | Farve |
| Color histogram | Histogram |
| Color of eyes | Øjenfarve |
| Color reproduction | Krom |
| Color symbolism and psychology | Farvesymbolik |
| Color theory | Farvesystem |
| Colorado | Colorado |
| Colorado Avalanche | Colorado Avalanche |
| Colorado Desert | Colorado |
| Colorado River | Colorado River |
| Colorado Rockies | Colorado Rockies |
| Colorectal cancer | Kolorektal cancer |
| colored | farvet |
| colorful | farverig |
| Colossal Cave Adventure | Adventurespil |
| Colossal Squid | Kolosblæksprutte |
| Colosseum | Colosseum |
| Colossus computer | Colossus |
| Colossus of Rhodes | Kolossen på Rhodos |
| colostrum | råmælk |
| colour | farve |
| colour composition | farvesammensætning |
| colour television | farve-tv |
| Colourfast | Lysægthed |
| Colourfastness | Lysægthed |
| colourimetry | kolorimetri |
