| Colossal Cave Adventure | Colossal Cave Adventure |
| Colossal magnetoresistance | Magnétorésistance colossale |
| Colosseum | Colisée |
| Colossi of Memnon | Colosses de Memnon |
| Colossians | Colossiens |
| colossus | géant |
| Colossus computer | Colossus |
| Colossus of Nero | Colosse de Néron |
| Colossus of Rhodes | Colosse de Rhodes |
| Colostethus | Colostethus |
| colostomy | colostomie |
| colostrum | colostrum |
| colour | couleur |
| colour composition | composition de couleurs |
| Colour depth | Profondeur des couleurs |
| Colour film | Film en couleur |
| Colour Me Kubrick | Appelez-moi Kubrick |
| Colour trademark | Marque coleur |
| colourant | colorant |
| colourimetry | colorimétrie |
| colourless | incolore |
| Colourlessly | Blanc |
| Colpitts oscillator | Oscillateur Colpitts |
| colposcope | colposcope |
| Colposcopy | Colposcopie |
| colt | poulain |
| Colt Anaconda | Colt Anaconda |
| Colt Delta Elite | Colt Delta Elite |
| Colt Double Eagle | Colt Double Eagle |
| Colt King Cobra | Colt King Cobra |
| Colt Python | Colt Python |
| Colt Single Action Army | Colt Single Action Army |
| COLT Telecom Group | COLT Telecom Group |
| colter | coutre |
| Coluber | Natricinae |
| colubrid | colubridés |
| Colubrinae | Colubrinae |
| Coluccio Salutati | Coluccio Salutati |
| Coluche | Coluche |
| colugo | dermoptère |
| Colugos | Dermoptera |
| Columba | Colombe |
| Columbanus | Colomban de Luxeuil |
| Columbia | Columbia |
| Columbia Center | Columbia Center |
| Columbia County | Comté de Columbia |
| Columbia Generating Station | Centrale nucléaire de Columbia |
| Columbia Records | Columbia |
| Columbia River | Columbia |
| Columbia University | Université Columbia |
| Columbian | Colombien |
| Columbian Exchange | Échange colombien |
| Columbidae | Columbidae |
| Columbiformes | Columbiformes |
| Columbina | Colombine |
| columbine | ancolie |
| Columbine High School massacre | Fusillade du lycée Columbine |
| Columbretes Islands | Îles Columbretes |
| Columbus | Christophe Colomb |
| Columbus Blue Jackets | Blue Jackets de Columbus |
| Columbus Crew | Columbus Crew |
| Columbus Day | Jour de Christophe Colomb |
| columella | columelle |
| column | colonne |
| Column of Marcus Aurelius | Colonne de Marc-Aurèle |
| Column of Phocas | Colonne de Phocas |
| columnist | chroniqueur |
| Coluthus | Coluthos |
| Coly | Coly |
| colza | chou |
| Colón de Santa Fe | CA Colón de Santa Fe |
| Colón Partido | Colón |
| Colón Province | Colón |
| Com | COM |
| coma | coma |
| Coma Berenices | Chevelure de Bérénice |
| Coma Cluster | Amas de Coma |
| Coma Pedrosa | Pic de Coma Pedrosa |
| Comanche | Comanches |
| Comanche County | Comté de Comanche |
| Comanche Peak Nuclear Generating Station | Centrale nucléaire de Comanche Peak |
| Comanche series | Comanches |
| Comand | Ordre |
| Comano | Comano |
