| coach | kouč |
| coacha | trénovat |
| COBOL | COBOL |
| Coca-Cola | Coca-Cola |
| Cochin | Prefektura Kóči |
| cockpit | kokpit |
| cocktail | koktejl |
| Cocomo | Cocomo |
| Codex Alexandrinus | Alexandrijský kodex |
| Codex Bezae | Bezův kodex |
| Codex Regius | Poetická Edda |
| Codex Sinaiticus | Sinajský kodex |
| Codex Vaticanus | Vatikánský kodex |
| Coelius Antipater | Lucius Coelius Antipater |
| Coelophysis | Coelophysis |
| Coelurosaurier | Coelurosauria |
| Coenraad Jacob Temminck | Coenraad Jacob Temminck |
| Coffeeshop | Bar |
| Coimbra | Coimbra |
| Coimbragruppen | Coimbra Group |
| Cointreau | Cointreau |
| Cola | Kola |
| Colchester | Colchester |
| Cold Case | Odložené případy |
| Coldplay | Coldplay |
| Colima | Colima |
| Colin Farrell | Colin Farrell |
| Colin McRae | Colin McRae |
| Colin Powell | Colin Powell |
| Collage | Koláž |
| Colleen Fitzpatrick | Vitamín C |
| Collège de France | College de France |
| Colmar | Colmar |
| Colombes | Colombes |
| Colombia | Kolumbie |
| Colombo | Kolombo |
| Colony Collapse Disorder | Colony Collapse Disorder |
| Colorado | Colorado |
| Colorado Avalanche | Colorado Avalanche |
| Colorado Rockies | Colorado Rockies |
| Coloradofloden | Colorado |
| Coloradoöknen | Colorado |
| Colosseum | Koloseum |
| Columbi ägg | Kolumbovo vejce |
| Columbia | Columbia |
| Columbia Center | Bank of America Tower |
| Columbia County | Columbia County |
| Columbia University | Columbia University |
| Columbiafloden | Columbia |
| Columbine-massakern | Masakr na Columbine High School |
| Columbo | Columbo |
| Columbus | Columbus |
| Columbus Blue Jackets | Columbus Blue Jackets |
| Comecon | Rada vzájemné hospodářské pomoci |
| Comet | Comet I |
| Comino | Comino |
| Comitium | Internetová diskuse |
| Comma-separated value | CSV |
| Commando | Commandos |
