| Classes de complexité P et NP | Complexity classes P and NP |
| Classes laborieuses | Working classes |
| Classes ouvrières | Working classes |
| classeur | filing cabinet |
| Classeur à attaches | Folder |
| classeur à tiroirs | filing cabinet |
| Classic de Canberra | Richard Luton Properties Canberra International |
| Classic de San Diego | Acura Classic |
| Classic rock | Classic rock |
| classicisant | classicistic |
| classicisme | classicism |
| Classicisme de Weimar | Weimar Classicism |
| Classicisme nordique | Nordic Classicism |
| classificateur | classifier |
| Classificateurs en chinois | Chinese measure word |
| classification | classification |
| Classification Aarne-Thompson | Aarne-Thompson classification system |
| Classification APG | APG system |
| Classification APG II | APG II system |
| Classification classique | Cronquist system |
| Classification Cronquist | Cronquist system |
| classification d'image | image classification |
| Classification de Candolle | De Candolle system |
| Classification de Cronquist | Cronquist system |
| Classification de Dahlgren | Dahlgren system |
| Classification de Engler | Engler system |
| Classification de Harvard | Harvard classification |
| Classification de Hubble | Hubble classification |
| Classification de Köppen | Köppen climate classification |
| classification de l'usage des sols | land use classification |
| Classification de la Bibliothèque du Congrès | Library of Congress Classification |
| Classification de Raunkier | Raunkiær system |
| Classification de Takhtajan | Takhtajan system |
| Classification de Thorne | Thorne system |
| Classification de Wettstein | Wettstein system |
| Classification des Arecacées | List of Arecaceae genera |
| Classification des locomotives | Wheel arrangement |
| Classification des sinogrammes | Chinese character classification |
| Classification des virus | Virus classification |
| Classification décimale de Dewey | Dewey Decimal Classification |
| Classification décimale universelle | Universal Decimal Classification |
| Classification en luminosite | Luminosity classification |
| Classification en luminosité | Luminosity classification |
| Classification internationale des maladies | ICD |
| Classification internationale des maladies oncologiques | International Classification of Diseases for Oncology |
| Classification internationale des soins primaires | International Classification of Primary Care |
| Classification JEL | JEL classification codes |
| Classification MK | MK classification |
| Classification phylogénétique | Domain |
| Classification scientifique | Scientific classification |
| Classification scientifique des espèces | Scientific classification |
| Classification spectrale | Spectral classification |
| Classification spectrale des astéroïdes | Asteroid spectral types |
| Classification TNM | TNM |
| Classification à facettes | Faceted classification |
| classifier | arrange |
| classique | conventional |
| Classique Bob Hope Chrysler | Bob Hope Chrysler Classic |
| Classique de la musique | Classic of Music |
| Classique de San Sebastian | Clásica de San Sebastián |
| Classique des Alpes | Classique des Alpes |
| Classique des documents | Classic of History |
| Classique des rites | Classic of Rites |
| Classique des vers | Shi Jing |
| Classique mondiale de baseball | World Baseball Classic |
| Classiques chinois | Chinese classic texts |
| classème | classeme |
| classé | eyes-only |
| clathrate | clathrate |
| Clathrine | Clathrin |
| Claude | Claude |
| Claude Balbastre | Claude-Bénigne Balbastre |
| Claude Bernard | Claude Bernard |
| Claude Cahun | Claude Cahun |
| Claude Capperonnier | Claude Capperonnier |
| Claude Carloman de Rulhière | Claude-Carloman de Rulhière |
| Claude Chabrol | Claude Chabrol |
| Claude Chappe | Claude Chappe |
| Claude Cohen-Tannoudji | Claude Cohen-Tannoudji |
| Claude Criquielion | Claude Criquielion |
| Claude de France | Claude of France |
| Claude de la Colombière | Claude de la Colombière |
| Claude Debussy | Claude Debussy |
| Claude Fauriel | Claude Charles Fauriel |
| Claude Favre de Vaugelas | Claude Favre de Vaugelas |
| Claude Florimond de Mercy | Florimund Mercy |
| Claude Galien | Galen |
| Claude Gellée | Claude Lorrain |
| Claude Gillot | Claude Gillot |
| Claude II le Gothique | Claudius II |
| Claude Jade | Claude Jade |
| Claude Joseph Geoffroy | Claude Joseph Geoffroy |
| Claude Joseph Rouget de Lisle | Claude Joseph Rouget de Lisle |
| Claude Joseph Vernet | Claude Joseph Vernet |
| Claude Lanzmann | Claude Lanzmann |
| Claude Le Jeune | Claude Le Jeune |
| Claude Le Roy | Claude Le Roy |
| Claude Lelouch | Claude Lelouch |
| Claude Louis Berthollet | Claude Louis Berthollet |
| Claude Louis Hector de Villars | Claude Louis Hector de Villars |
| Claude Lévi-Strauss | Claude Lévi-Strauss |
| Claude Makelele | Claude Makélélé |
| Claude Mellan | Claude Mellan |
| Claude Monet | Claude Monet |
| Claude Nicolas Ledoux | Claude Nicolas Ledoux |
| Claude Piron | Claude Piron |
| Claude Pouillet | Claude Servais Mathias Pouillet |
| Claude Prosper Jolyot de Crébillon | Claude Prosper Jolyot de Crébillon |
| Claude Saumaise | Claudius Salmasius |
| Claude Shannon | Claude Shannon |
| Claude Simon | Claude Simon |
| Claude Vorilhon | Raël |
| Claude-Adrien Helvétius | Claude Adrien Helvétius |
| Claude-Philibert Barthelot de Rambuteau | Claude-Philibert Barthelot de Rambuteau |
| Claudette Colbert | Claudette Colbert |
