| Club América | Club América |
| Club Athlétique Brive Corrèze | CA Brive |
| Club Atlético Arsenal | Arsenal de Sarandí |
| Club Atlético Boca Juniors | Boca Juniors |
| Club Atlético Independiente | Independiente |
| Club Atlético Osasuna | CA Osasuna |
| Club Atlético Peñarol | Peñarol Montevideo |
| Club Atlético Peñarol Mar del Plata | Peñarol Montevideo |
| Club Atlético River Plate | River Plate |
| Club Atlético Rosario Central | Rosario Central |
| Club Atlético San Lorenzo de Almagro | CA San Lorenzo de Almagro |
| Club Atlético Vélez Sársfield | Vélez Sársfield |
| Club Baloncesto Málaga | CB Málaga |
| Club de Fútbol Universidad de Chile | CF Universidad de Chile |
| Club de Gimnasia y Esgrima La Plata | Gimnasia y Esgrima de La Plata |
| Club de Hockey Canadien | Canadiens de Montréal |
| Club de Regatas Vasco da Gama | CR Vasco da Gama |
| Club dei foglianti | Feuillants |
| club del libro | Buchgemeinschaft |
| Club Deportivo Castellón | CD Castellón |
| Club Deportivo Los Millonarios | Millonarios |
| Club Deportivo Numancia de Soria | CD Numancia |
| Club Deportivo Tenerife | CD Teneriffa |
| Club Deportivo Toluca | Deportivo Toluca |
| Club di Roma | Club of Rome |
| Club infernale | Hellfire Club |
| Club Joventut de Badalona | Joventut de Badalona |
| Club Libertad | Libertad Asunción |
| Club maschile di studenti | Brüderschaft |
| Club Nacional de Football | Nacional Montevideo |
| Club Olimpia | Olimpia Asunción |
| Club Sportif Bourgoin-Jallieu Rugby | CS Bourgoin-Jallieu |
| Club Sportivo Marítimo | Marítimo Madeira |
| Clube Atlético Mineiro | Atlético Mineiro |
| Clube Atlético Paranaense | Clube Atlético Paranaense |
| Clube de Regatas do Flamengo | Flamengo Rio de Janeiro |
| Clube Desportivo das Aves | CD Aves |
| Clube Desportivo Nacional | Clube Desportivo Nacional |
| Clube Náutico Capibaribe | Clube Náutico Capibaribe |
| ClubJenna | ClubJenna |
| Clucy | Clucy |
| Cluedo | Cluedo |
| Clugin | Clugin |
| Cluj | Bezirk Cluj |
| Cluj-Napoca | Cluj-Napoca |
| Cluny | Cluny |
| Clupea harengus | Atlantischer Hering |
| Cluses | Cluses |
| Clusone | Clusone |
| Cluster | Cluster |
| Clustering | Clusteranalyse |
| Clyde Tombaugh | Clyde Tombaugh |
| Cláudio Caçapa | Caçapa |
| Cláudio Hummes | Cláudio Hummes |
| Cláudio Taffarel | Cláudio Taffarel |
| Clémence Poésy | Clémence Poésy |
| Clément Marot | Clément Marot |
| Cléo de Mérode | Cléo de Mérode |
| CM | CM |
| CMOS | Complementary Metal Oxide Semiconductor |
| CMYK | CMYK-Farbmodell |
| CN | CN |
| CN Tower | CN Tower |
| Cna | Zna |
| CNC | CNC |
| CNH Global | CNH Global |
| Cnidaria | Nesseltiere |
| Cnido | Knidos |
| Cniva | Kniva |
| CNN | Cable News Network |
| Cnosso | Knossos |
| CO | CO |
| co- | ko- |
| co-incenerimento | Mitverbrennung |
| co-protagonista | Gegenspieler |
| co-querelante | Mitkläger |
| coabitare | zusammenleben |
| coabitazione | eheliche Gemeinschaft |
| Coacervazione | Ansammlung |
| coach | Trainer |
| Coadout | Coadout |
| coagulamento | Gerinnen |
| coagulante | Gerinnstoff |
| coagulare | eindicken |
| coagularsi | sauer werden |
| coagulato | gerinnt |
| coagulazione | Gerinnen |
| Coagulazione del sangue | Gerinnungsfaktor |
| Coagulazione intravascolare disseminata | Disseminierte intravasale Koagulopathie |
| coagulo | Blutgerinnsel |
| Coahuila | Coahuila |
| Coal Grove | Coal Grove |
| Coalbrookdale | Coalbrookdale |
| coalizione | Block |
| Coalizione multinazionale in Iraq | Koalition der Willigen |
