| clavichord | Klavichord |
| clavichordium | Klavichord |
| Clavier | Klaviatur |
| Claviere | Clavière |
| Clavulaanzuur | Clavulansäure |
| claxon | Hupe |
| claxonneren | hupen |
| Clay County | Clay County |
| Clay Regazzoni | Clay Regazzoni |
| Clayhatchee | Clayhatchee |
| Claymont | Claymont |
| Clayton | Clayton |
| Clayton County | Clayton County |
| Cleanroom | Reinraum |
| Clear channel | Clear Channel Communications |
| Clear Creek County | Clear Creek County |
| Clear Lake | Clear Lake |
| Clearbrook Park | Clearbrook Park |
| Clearfield County | Clearfield County |
| Clearing | Clearing |
| Clearinghouse | Clearing |
| Clearlake | Clearlake |
| Clearwater | Clearwater |
| Clearwater County | Clearwater County |
| Cleburne County | Cleburne County |
| Cleebronn | Cleebronn |
| clematis | Klematis |
| Clemency | Clemency |
| Clemens | Clement |
| Clemens August von Galen | Clemens August Graf von Galen |
| Clemens Brentano | Clemens Brentano |
| Clemens Krauss | Clemens Krauss |
| Clemens Maria Hofbauer | Klemens Maria Hofbauer |
| Clemens van Alexandrië | Clemens von Alexandria |
| Clemens van Ohrid | Kliment von Ohrid |
| Clemens von Pirquet | Clemens von Pirquet |
| Clement Attlee | Clement Attlee |
| Clement Juglar | Clement Juglar |
| Clementia van Hongarije | Klementine von Ungarn |
| clementie | Milde |
| Clementina van België | Clementine von Belgien |
| Clementine | Mandarine |
| Clementine van Oostenrijk | Maria Klementine von Österreich |
| Clementine van Orléans | Clementine d’Orléans |
| Clementinum | Clementinum |
| Clemmons | Clemmons |
| Clenbuterol | Clenbuterol |
| Clenze | Clenze |
| Cleobulus | Kleobulos |
| Cleomenes | Kleomenes |
| Cleon | Kleon |
| Cleonae | Kleonai |
| Cleopatra | Kleopatra |
| Cleopatra Selena | Kleopatra Selene |
| Cleopatra Selena II | Kleopatra Selene |
| Cleph | Cleph |
| Clermont | Clermont |
| Clermont County | Clermont County |
| Clermont Foot Auvergne | Clermont Foot |
| Clermont-Ferrand | Clermont-Ferrand |
| Cleruchie | Kleruch |
| clerus | Geistlichkeit |
| Clerval | Clerval |
| Clervaux | Clerf |
| Clethraceae | Scheinellergewächse |
| Cleveland | Cleveland |
| Cleveland Abbe | Cleveland Abbe |
| Cleveland bay | Cleveland Bay |
| Cleveland Browns | Cleveland Browns |
| Cleveland Cavaliers | Cleveland Cavaliers |
| Cleveland County | Cleveland County |
| Cleveland Indians | Cleveland Indians |
| Cleveland-klasse | Cleveland-Klasse |
| Cleves | Kleve |
| Clibanarius | Clibanarius |
| Clichy | Clichy-la-Garenne |
| Clichy-sous-Bois | Clichy-sous-Bois |
| cliché | Geistlosigkeit |
| clichéuitdrukking | Slogan |
| Click | Klick |
| Clickertraining | Klickertraining |
| Cliens | Kunde |
| client | Klient |
| Client-centered therapie | Klientenzentrierte Psychotherapie |
| Client-servermodel | Client-Server-Modell |
| clientèle | Kundschaft |
| Cliff Burton | Clifford Lee Burton |
| Cliff Richard | Cliff Richard |
| Cliffhanger | Feuilleton |
| Clifford Geertz | Clifford Geertz |
| Clifford James Geertz | Clifford Geertz |
| Cliffside Park | Cliffside Park |
| Clifton | Clifton |
| Clifton Suspension Bridge | Clifton Suspension Bridge |
| Cliftonville FC | Cliftonville FC |
| clignoteur | Blinker |
| climactisch | kulminierend |
| climatisch | klimatisch |
