| CPU | Procesor |
| CQD | CQD |
| CR Flamengo | Flamengo Rio de Janeiro |
| CR Vasco da Gama | Vasco da Gama Rio de Janeiro |
| crack | gruda |
| Crackare | Cracker |
| Cracktro | Cracktro |
| Cracovia Kraków | Klub Sportowy Cracovia |
| Cradle of Filth | Cradle of Filth |
| Crafoordpriset | Nagroda Crafoorda |
| Craig Armstrong | Craig Armstrong |
| Craig Bellamy | Craig Bellamy |
| Craig Jones | Craig Jones |
| Craig Thomas | Craig Thomas |
| Crailsheim | Crailsheim |
| Cramers regel | Wzory Cramera |
| CRAN | CRAN |
| Crans-près-Céligny | Crans-près-Céligny |
| Crash | Miasto gniewu |
| Crash Bandicoot | Crash Bandicoot |
| Crash pad | Crashpad |
| Crass | Crass |
| Crassiers | Crassiers |
| Crassus | Marek Licyniusz Krassus |
| Crawford | Crawford |
| Crawford County | Hrabstwo Crawford |
| Crayon Shin-chan | Shin-chan |
| Crazy Horse | Szalony Koń |
| Creative Commons | Creative Commons |
| Creative Technology | Creative Technology |
| Creighton Abrams | Creighton Abrams |
| Creil | Creil |
| Cremin | Cremin |
| Cremona | Cremona |
| Creodonta | Pradrapieżne |
| Cres | Cres |
| crescendo | crescendo |
| Cresciano | Cresciano |
| Cressida | Kresyda |
| Creuse | Creuse |
| Creutzfeldt-Jakobs sjukdom | choroba Creutzfeldta-Jakoba |
| Crewe | Crewe |
| cricket | krykiet |
| Criollo | Criollo |
| Crips | Crips |
| Cris | Cris |
| Crispin Glover | Crispin Glover |
| Crispinus | Święci Kryspin i Kryspinian |
| Criss Angel | Criss Angel |
| Crissier | Crissier |
| Cristian | Krystian |
| Cristian Brocchi | Cristian Brocchi |
| Cristian Chivu | Cristian Chivu |
| Cristian Mungiu | Cristian Mungiu |
| Cristian Zaccardo | Cristian Zaccardo |
| Cristiano Lucarelli | Cristiano Lucarelli |
| Cristiano Ronaldo | Cristiano Ronaldo |
| Cristina | Krystyna |
| Cristina Fernández de Kirchner | Cristina Fernández de Kirchner |
| Cristina Scabbia | Cristina Scabbia |
| Cristo Redentor | Pomnik Chrystusa Zbawiciela w Rio de Janeiro |
| Crittenden County | Hrabstwo Crittenden |
| Crnojević Ivan I | Ivan I Crnojević |
| Crnojević Stefan | Stefan Crnojević |
| Crnojević Stefanica | Stefanica Crnojević |
| Crnojevićdynastin | Dynastia Crnojewiciów |
| Croatia Airlines | Croatia Airlines |
| Crocodylus | Crocodylus |
| Croglio | Croglio |
| Crohns sjukdom | Choroba Leśniowskiego-Crohna |
| Croix | Croix |
| Croix de Guerre | Krzyż Wojenny |
| Cromagnonmänniskan | Homo sapiens fossilis |
| Cromwell | Mk VIII Cromwell |
| Cronay | Cronay |
| Crook County | Hrabstwo Crook |
| Cross River | Cross River |
| Cross site scripting | Cross-site scripting |
| Crossdressing | Crossdressing |
| CrossFire | CrossFire |
| Crossover | Crossover |
| CrossOver Office | CrossOver Office |
| Crossover utility vehicle | Crossover |
| Crotone | Crotone |
| croupier | krupier |
| Crown Dependency | Dependencja Korony brytyjskiej |
| Croy | Croy |
| Croydon | Croydon |
| Crozes-Hermitage | Crozes-Hermitage |
| Crozetöarna | Wyspy Crozeta |
| Crusader | Mk VI Crusader |
| Crust | Crust punk |
| Cruz Hernández | Cruz Hernández |
| Cruzeiro EC | Cruzeiro Esporte Clube |
| Crwth | Crwth |
| Cryobot | Cryobot |
| Cryolophosaurus | Kriolofozaur |
| Crytek | Crytek |
| Crème de cassis | Crème de cassis |
| Crédit Agricole | Crédit Agricole |
| Crésuz | Crésuz |
| Créteil | Créteil |
| CS | Cs |
| CS Marítimo | CS Marítimo |
| CS Sedan | CS Sedan |
| CSA Czech Airlines | Czech Airlines |
| CSKA Sofia | CSKA Sofia |
| Csongrád | Komitat Csongrád |
| CSS | Kaskadowe arkusze stylów |
| CSU | Unia Chrześcijańsko-Społeczna w Bawarii |
| Csv | CSV |
| Ctenochaetus | Ctenochaetus |
| Cthulhu | Cthulhu |
| Cthulhu-mytologin | Wielcy Przedwieczni |
| Cuarnens | Cuarnens |
| Cuarny | Cuarny |
| Cuauhtémoc | ARM Cuauhtémoc |
| Cuba Libre | Cuba Libre |
| Cube | Cube |
| Cubewano | Cubewano |
| Cubic | Equilibrium |
| Cubiculum | Cubiculum |
| Cuchulainn | Cúchulainn |
| Cucurbitales | Dyniowce |
| Cudrefin | Cudrefin |
| Cuenca | Cuenca |
| Cuernavaca | Cuernavaca |
| Cugnasco | Cugnasco |
| Cugy | Cugy |
| Cuiabá | Cuiabá |
| Cuitláhuac | Cuitláhuac |
| Cuiviénen | Kuiviénen |
| Cujo | Cujo |
| Culhwch | Culhwch |
| Culiacán | Culiacán |
| Cullinandiamanten | Cullinan |
| Cully | Cully |
| Culture Club | Culture Club |
| Cumbel | Cumbel |
| Cumberland | Cumberland |
| Cumberland County | Hrabstwo Cumberland |
| Cumbia | Cumbia |
| Cumbria | Cumbria |
| Cumulonimbus | Cumulonimbus |
| Cumulus | Cumulus |
| Cunard Line | Cunard Line |
| Cundinamarca | Cundinamarca |
| Cuneo | Prowincja Cuneo |
| Cunningham | Cunningham |
| Cunter | Cunter |
| cup | puchar |
| Cupertino | Cupertino |
| Cupid | Kupid |
| CUPS | Common UNIX Printing System |
| Cupvinnarcupen i fotboll | Puchar Zdobywców Pucharów w piłce nożnej |
| Cupvinnarcupen i handboll | Puchar Zdobywców Pucharów w piłce nożnej |
| Curaçao | Curaçao |
| Curaçao likör | Curaçao |
| Curd Jürgens | Curd Jürgens |
| Cureglia | Cureglia |
| Curie | Kiur |
| Curio | Curio |
| Curitiba | Kurytyba |
| curium | kiur |
| Curling | Curling |
| Curly coated retriever | Curly Coated Retriever |
| Curry | Curry |
| Curry County | Hrabstwo Curry |
| Cursed | Wilkołak |
| Curt Sachs | Curt Sachs |
| Curtilles | Curtilles |
| Curtis | Curtis |
| Curtis LeMay | Curtis LeMay |
| Curtis Mayfield | Curtis Mayfield |
| Curtiss-Wright | Curtiss-Wright Corporation |
| Curzonlinjen | Linia Curzona |
| Cusco | Cuzco |
| Cushings syndrom | Zespół Cushinga |
| Custer County | Hrabstwo Custer |
| Custom | Tuning |
| Customer Relationship Management | Zarządzanie relacjami z klientami |
| Cut | Cut |
| Cutting Crew | Cutting crew |
| Cutty Sark | Cutty Sark |
| Cuxhaven | Cuxhaven |
| CW | CW |
| Cyan | Cyjan |
| cyanat | cyjanian |
| Cyanater | Cyjaniany |
| cyanfärg | turkus |
| cyanfärgad | turkusowy |
| cyanid | cyjanek |
| Cyanider | Cyjanki |
| Cyanobakterier | Sinice |
| cyber- | cyber- |
| Cyberiaden | Cyberiada |
| Cyberjaya | Cyberjaya |
| Cybernetik | Cybernetyka |
| Cyberpunk | Cyberpunk |
| cyberrymd | cyberprzestrzeń |
| Cybersquatting | Cybersquatting |
| Cybill Shepherd | Cybill Shepherd |
| Cyclic Redundancy Check | CRC |
| Cyclops | Cyklop |
| Cygwin | Cygwin |
| cykel | rower |
| Cykel -keln -klar | Rower |
| cykelbana | ścieżka rowerowa |
| Cykelpump | Pompka rowerowa |
| cykelspark | nożyce |
| Cykelsport | Kolarstwo |
| Cykelstyre | Kierownica rowerowa |
| Cykeltjuven | Ladri di biciclette |
| Cykeltrial | Trial |
| cyklamen | cyklamen |
| cykling | kolarstwo |
| cyklisk | okresowy |
| Cyklisk grupp | Grupa cykliczna |
| cyklist | rowerzysta |
| Cyklohexanon | Cykloheksanon |
| cyklon | cyklon |
| Cyklonen Sidr | Cyklon Sidr |
| cyklop | cyklop |
| cyklopentan | cyklopentan |
| Cykloper | Cyklop |
| cyklotron | cyklotron |
| Cyklotymi | Cyklotymia |
| cylinder | cylinder |
