| coś takiego | vaya |
| Coś łatwego | Chasquid |
| Cośkolwiek | Alguna cantidad |
| CPAN | CPAN |
| CPI | IPC |
| CPLD | CPLD |
| CPM | Método de la ruta crítica |
| CPP | Preprocesador de C |
| CPU | CPU |
| CQD | CQD |
| Cracker | Cracker |
| Cracking | Cracking |
| Cradle of Filth | Cradle of Filth |
| Craig Bellamy | Craig Bellamy |
| Craig Jones | Craig Jones |
| Crailsheim | Crailsheim |
| Cranidos | Cranidos |
| Crans | Crans |
| Crans-près-Céligny | Crans-près-Céligny |
| Crançot | Crançot |
| Crash Bandicoot | Crash Bandicoot |
| Crass | Crass |
| Crassiers | Crassiers |
| Crassigyrinus | Crassigyrinus |
| Crato | Crato |
| Crazy Horse de Paris | Caballo Loco |
| CRB Maceió | Clube de Regatas Brasil |
| CRC | Control de redundancia cíclica |
| Create | Lenguaje de definición de datos |
| Creative Commons | Creative Commons |
| Creative Labs MuVo | Creative Labs MuVo |
| Creative Labs Zen | Creative Zen |
| Creative Technology | Creative Technology |
| Cremaster | Cremáster |
| Cremin | Cremin |
| Cremona | Cremona |
| crescendo | crescendo |
| Cresciano | Cresciano |
| Creuse | Creuse |
| Crew | Corvus |
| CRI | Ra |
| Cricetomys | Cricetomys |
| Criollo | Caballo criollo |
| Crips | Crips |
| Cris | Cristiano Marques Gomes |
| Crispin Glover | Crispin Glover |
| Criss Angel | Criss Angel |
| Crissier | Crissier |
| Cristian Brocchi | Cristian Brocchi |
| Cristian Chivu | Cristian Chivu |
| Cristian Daniel Ledesma | Cristian Ledesma |
| Cristian Zaccardo | Cristian Zaccardo |
| Cristiano Lucarelli | Cristiano Lucarelli |
| Cristiano Ronaldo | Cristiano Ronaldo |
| Cristina Fernández de Kirchner | Cristina Fernández |
| Cristina Scabbia | Cristina Scabbia |
| Cristóbal Colón | Pico Cristóbal Colón |
| Cristóbal de Morales | Cristóbal de Morales |
| Critérium du Dauphiné Libéré | Dauphiné Libéré |
| Critérium International | Critérium Internacional |
| CRL | CRL |
| Croatia Airlines | Croatia Airlines |
| Crocodylus | Crocodylus |
| Croglio | Croglio |
| Croix | Croix |
| Cron | Cron |
| Cronay | Cronay |
| Crontab | Cron |
| Cross | Cruz |
| Cross River | Cross River |
| Cross-kompilator | Compilador cruzado |
| Cross-site scripting | XSS |
| Crossing-over | Recombinación genética |
| Crossover | Crossover |
| CrossOver Office | CrossOver Office |
| Crosspost | Envío cruzado |
| Crotalus | Crotalus |
| Crotone | Crotone |
| Croy | Croy |
| Croydon | Croydon |
| Croze | Croze |
| Crozet | Crozet |
| CRT | Tubo de rayos catódicos |
| Crumpet | Crumpet |
| Crusoe | Crusoe |
| Crust punk | Crust punk |
| Cruz Azul Meksyk | Cruz Azul |
| Cruz Hernández | Cruz Hernández |
| Cruzeiro Esporte Clube | Cruzeiro Esporte Clube |
| Cruzy-le-Châtel | Cruzy-le-Châtel |
| Crvena Zvezda Belgrad | Estrella Roja de Belgrado |
| Cryptobranchoidea | Cryptobranchoidea |
| Crystal | Cristal |
| Crédit Agricole | Crédit Agricole |
| Crésuz | Crésuz |
| Créteil | Créteil |
| Cs | CS |
| CS Marítimo | Club Sport Marítimo |
| CS Sedan | Club Sportif Sedan Ardennes |
| CSA Maceió | Centro Sportivo Alagoano |
| Csh | C Shell |
| CSKA Moskwa | PFC CSKA Moscú |
| CSKA Sofia | PFC CSKA Sofia |
| CSpace | Cspace |
| CSR | Responsabilidad social corporativa |
| CSS | Hojas de estilo en cascada |
| CSV | CSV |
| CTCP | CTCP |
| CtF | Computer to film |
| ctg | cot |
| Cthulhu | Cthulhu |
| CtP | Computer to Plate |
| Cuarnens | Cuarnens |
| Cuarny | Cuarny |
| Cuatro Torres Business Area | Cuatro Torres Business Area |
| Cuauhtemoc | Cuauhtémoc |
| Cuba | Cuba |
| Cuba Libre | Cubalibre |
| Cubagua | Isla de Cubagua |
| Cube | Cube |
| Cubiculum | Cámara |
| Cubières-sur-Cinoble | Cubières-sur-Cinoble |
| cuchnący | fétido |
| Cuchulainn | Cúchulainn |
| cud | maravilla |
| Cud w Lake Placid | Milagro |
| cudaczny | extraño |
| Cudowne lata | The Wonder Years |
| cudownie | maravillosamente |
| cudowny | encantador |
| Cudowny mandaryn | El mandarín maravilloso |
| cudowronka | ave del paraíso |
| Cudowronki | Paradisaeidae |
| Cudrefin | Cudrefin |
| cudzoziemiec | extranjero |
| cudzoziemka | extranjero |
