| Châlons-en-Champagne | Châlons-en-Champagne |
| Château Clermont | Château de Clermont |
| Château de Montségur | Montségur |
| Château des Adhémar | Château des Adhémar |
| Château Frontenac | Château Frontenac |
| Château Lafite-Rothschild | Château Lafite Rothschild |
| Château Mouton-Rothschild | Château Mouton Rothschild |
| Château Pétrus | Château Pétrus |
| Château Troussay | Château de Troussay |
| Château-Chinon | Château-Chinon |
| Château-Renard | Châteaurenard |
| Châteaubleau | Châteaubleau |
| Châteauneuf-de-Galaure | Châteauneuf-de-Galaure |
| Châteauneuf-de-Randon | Châteauneuf-de-Randon |
| Châteauneuf-Grasse | Châteauneuf-Grasse |
| Châteauneuf-sur-Loire | Châteauneuf-sur-Loire |
| Châteaurenard | Châteaurenard |
| Châteauroux | Châteauroux |
| Châteauroux-les-Alpes | Châteauroux |
| Châtel-Saint-Denis | Châtel-Saint-Denis |
| Châtel-sur-Montsalvens | Châtel-sur-Montsalvens |
| Châtelain | Lord |
| Châtellerault | Châtellerault |
| Châtelperronien | Châtelperronian |
| Châtenay-Malabry | Châtenay-Malabry |
| Châtillens | Châtillens |
| Chèsopelloz | Chèsopelloz |
| Chénens | Chénens |
| Chériennes | Chériennes |
| Chérisy | Chérisy |
| Chéserex | Chéserex |
| Chêne-Bourg | Chêne-Bourg |
| Chêne-Bourgeries | Chêne-Bougeries |
| Chêne-Pâquier | Chêne-Pâquier |
| Chödrak Gyatso | Chödrak Gyatso |
| Chögyam Trungpa | Chögyam Trungpa |
| Chöying Dorje | Chöying Dorje |
| Chęciny | Chęciny |
| Chľaba | Chľaba |
| CI | CI |
| CIA World Factbook | The World Factbook |
| CIA-gevangenissysteem | Black site |
| ciao | bye |
| Ciara | Ciara |
| Ciaran Power | Ciarán Power |
| Cibalia Vinkovci | HNK Cibalia |
| Cibona Toren | Cibona Tower |
| Cibotium | Cibotium |
| cicade | cicada |
| Cicely Mary Barker | Cicely Mary Barker |
| Cicero | Cicero |
| Ciceu | Ciceu |
| cichorei | chicory |
| Ciclosporine | Ciclosporin |
| Ciconiidae | Stork |
| Cicuta | Cicuta virosa |
| Cidade Baixa | Lower City |
| Cidade de Deus | City of God |
| cider | cider |
| Ciechanowiec | Ciechanowiec |
| Ciechanów | Ciechanów |
| Ciechocinek | Ciechocinek |
| Ciego de Ávila | Ciego de Ávila Province |
| CIELAB | Lab color space |
| Cienfuegos | Cienfuegos Province |
| Cieszanów | Cieszanów |
| Cieszków | Gmina Cieszków |
| cigarillo | cigarillo |
| Cih | Gamma Cassiopeiae |
| Cihuacoatl | Cihuacoatl |
| cijfer | mark |
| cijferen | reckon |
| cijferkunst | arithmetic |
| Cijfers en Letters | Des chiffres et des lettres |
| cijfers geven voor | mark |
| cijferslot | combination lock |
| cijns | tribute |
| Cilicisch Armenië | Armenian Kingdom of Cilicia |
| Cilicië | Cilicia |
| cilinder | roller |
| Cilindercoördinaten | Cylindrical coordinate system |
| cilinderhoed | top hat |
| cilinderkop | cylinder head |
| Cilinderslot | Pin tumbler lock |
| cilindervormig | cylindrical |
| cilindrisch | cylindrical |
| Cilix | Cilix |
| Cimabue | Cimabue |
| Cimadera | Cimadera |
| cimbaal | cymbal |
