| Corsikaan | Korsika |
| Corsikaans | Korsika |
| Corsikaanse | Korsika |
| Corteno Golgi | Corteno Golgi |
| Corticosteroïde | Kortikosteroidy |
| Corticotropin-releasing hormone | Kortikoliberin |
| Corticotropine | Adrenokortikotropní hormon |
| Cortona | Cortona |
| Corus-toernooi | Corus Chess Tournament |
| Coruscant | Coruscant |
| Corvette | Korveta |
| Corylus | Jelec proudník |
| Corythosaurus | Corythosaurus |
| Cosa Nostra | Cosa Nostra |
| Cosecans | Goniometrická funkce |
| Cosenza | Provincie Cosenza |
| cosinus | kosinus |
| Cosinusregel | Kosinová věta |
| Costa Brava | Costa Brava |
| Costa Rica | Kostarika |
| Costa Ricaans voetbalelftal | Kostarická fotbalová reprezentace |
| Costa Ricaanse colón | Kostarický colón |
| Così fan tutte | Così fan tutte |
| Cotonou | Cotonou |
| Cotopaxi | Cotopaxi |
| cottage cheese | tvaroh |
| coulissen | kulisy |
| coulomb | coulomb |
| Count Basie | Count Basie |
| Count Dooku | Hrabě Dooku |
| Counter-Strike | Counter-Strike |
| Counting sort | Counting sort |
| Countrymuziek | Country |
| County Cork | Cork |
| County Down | County Down |
| County Dublin | Dublin |
| County Galway | Galway |
| County Londonderry | Derry |
| Coupe de France | Francouzský fotbalový pohár |
| courgette | cuketa |
| Courtenay | Courtney |
| Courteney Cox | Courteney Cox |
| courtisane | kurtizána |
| Covalente straal | Kovalentní poloměr |
| covariantie | kovariance |
| Covasna | Covasna |
| Coven | Coven |
| Covent Garden | Covent Garden |
| Coventry | Coventry |
| Coventry City FC | Coventry City FC |
| cover | coververze |
| Cowperse klier | Cowperova žláza |
| Coyoacán | Coyoacán |
| coyote | kojot |
| Cozy Powell | Cozy Powell |
| coëfficiënt | koeficient |
| coïtus | soulož |
| coördinaat | souřadnice |
| coördinatenstelsel | soustava souřadnic |
| Coördinatiechemie | Komplexní sloučenina |
| coördineren | koordinovat |
| CR Vasco da Gama | Vasco da Gama |
| Cradle of Filth | Cradle of Filth |
| Craiova | Craiova |
| Craniata | Obratlovci |
| cranium | lebka |
| Crank | Adrenalin |
| CRASS | Crass |
| Crater Lake | Kráterové jezero |
| Craterus | Krateros |
| Crawford | Crawford |
| Crazy | Crazy |
| Crazy Horse | Splašený kůň |
| creatie | vytváření |
| creatief | tvořivý |
| creationair | kreační |
| Creationisme | Kreacionismus |
| Creative Commons | Creative Commons |
| creativiteit | tvořivost |
| creatuur | stvoření |
| creditcard | kreditní karta |
| crediteren | připsat |
| credo | krédo |
| Cree | kríjština |
| crematie | kremace |
| crematorium | krematorium |
| Cremona | Cremona |
| Creon | Kreón |
| Cres | Cres |
| Cresilas | Krésilás |
| Cressida | Cressida |
| Crest Of A Knave | Crest of a Knave |
| Creuse | Kroisos |
| creëren | udělat |
