| Cs | CS Lewis | CS-9 |
| CS9 | CSC | Csesznek |
| CSS | CSS (paglilinaw) | CTBT |
| Ctenolepisma almeriensis | Ctenolepisma lineata | Ctenophora |
| Ctenophore | Ctesibios | Ctesibius |
| Ctesifonte | Ctesiphon | Cthulhu |
| CTOT | Ctot | Cu |
| Cuando Cubango | Cuando seas mía | Cuanza Norte |
| Cuanza Sul | Cuaresma | Cuartero |
| Cuartero, Capiz | Cuaspud | Cuasso al Monte |
| Cuautitlán | Cuautla, Morelos | Cuña |
| Cuñas | Cuba | Cuba (paglilinaw) |
| Cuban | Cuban Republic | Cubana |
| Cubano | Cubará | Cubarral |
| Cube | Cube root | Cubic |
| Cubic function | Cubicle | Cubicle desk |
| Cubicle office | Cubiform | Cubism |
| Cucaita | Cuccaro Monferrato | Cuccaro Vetere |
| Cucciago | Cuceglio | Cucharadita |
| Cucharon | Cuckoo | Cuckoos |
| Cuculidae | Cuculus canorus | Cucumber |
| Cucumis melo | Cucumis sativus | Cucunubá |
| Cucurbita | Cucurbitaceae | Cucutilla |
| Cud | Cudahy, California | Cue sport |
| Cue sports | Cue sports sa Palarong Panloob ng Asya 2007 | Cue-sport |
| Cue-sports | Cuellar | Cuenca |
| Cuenca, Batangas | Cuenca, Espanya | Cuento |
| Cuernavaca | Cuesport | Cuesports |
| Cuggiono | Cugliate-Fabiasco | Cuglieri |
| Cugnoli | Cuidado con el ángel | Cuisine |
| Cuisine of Iceland | Cuitiva, Boyacá | Culaba |
| Culaba, Biliran | Culao, Claveria, Cagayan | Culasi |
| Culasi, Antique | Culebra | Culeto |
| Culiacán | Culicidae | Culicoidea |
| Culinary art | Culion | Culion (pelikula) |
| Culion, Palawan | Cullen Hoback | Cullit, Camalaniugan, Cagayan |
| Cullit, Gattaran, Cagayan | Cullit, Lal-lo, Cagayan | Culoz |
| Cult image | Cultural anthropology | Cultural Center of the Philippines |
| Cultural geography | Cultural Revolution | Cultural studies |
| Cultural study | Cultural tourism | Culture |
| Culture from Africa | Culture from Asia | Culture from North America |
| Culture in Africa | Culture in Asia | Culture in North America |
| Culture of Africa | Culture of Asia | Culture of Minoa |
| Culture of North America | Culture of Pakistan | Culture of South America |
| Culture of the West | Culver City, California | Cum |
| Cum clave | Cumae | Cumao, Gattaran, Cagayan |
| Cumaral | Cumaral (Meta) | Cumaribo |
| Cumas | Cumbal | Cumbal (Nariño) |
| Cumberland Plateau | Cumbitara | Cumbitara (Nariño) |
| Cumbria | Cumiana | Cumin |
| Cuminum cyminum | Cummin | Cumming |
| Cunardo | Cundinamarca | Cundinamarca Department |
| Cuneiform | Cuneiform script | Cuneiforme |
| Cunene (lalawigan) | Cuneo | Cunevo |
| Cunico | Cunig, Gattaran, Cagayan | Cunilingus |
| Cunnilingus | Cunning Takeyama | Cunnulingus |
| Cunnus | Cunulingus | Cunus |
| CUNY Graduate Center | Cuorgnè | Cupang North |
| Cupang Proper | Cupang West | Cupello |
| Cupertino, California | Cupid | Cupido |
| Cupra Marittima | Cuprammonium rayon | Cuprammonium Rayon |
| Cupramontana | Cuprum | Cura Carpignano |
| Curaçao | Curacao | Curé d'Ars |
| Curciat-Dongalon | Curcuma longa | Curcuma zedoaria |
| Curcuris | Cureggio | Curfew |
| Curia | Curiglia con Monteviasco | Curillo |
| Curinga | Curino | Curití (Santander) |
| Curiti | Curitiba | Curly Lambeau |
| Curlz | Curno | Currency |
| Currency exchange | Currency exchange center | Currency exchange centre |
| Current events | Curriculum & instruction | Curriculum and instruction |
| Curriculum vitae | Curriculum Vitae | Currimao |
| Currimao, Ilocos Norte | Curry | Curry laksa |
| Curry mee | Currywurst | Curse |
| Cursed | Curses | Cursi |
| Cursolo-Orasso | Curtafond | Curtarolo |
| Curtatone | Curti, Campania | Curtmantel |
| Curtmantle | Curumani | Curva, Pamplona, Cagayan |
| Curve radii | Curved claw | Curved claw hammer |
| Curved-claw | Curved-claw hammer | Cus |
| Cusago | Cusano Milanino | Cusano Mutri |
| Cusco | Cush | Cusino |
| Cusio, Lombardia | Cusio, Lombardy | Custard (caramel) |
| Custom | Customs | Custonaci |
| Cut the penis | Cutanda | Cute |
| Cutigliano | Cutro | Cutrofiano |
| Cutthroat trout | Cutthroat Trout | Cuveglio |
| Cuvette | Cuvio | Cuyapo |
| Cuyapo, Nueva Ecija | Cuyo | Cuyo, Palawan |
| Cuzco | Cuzieu, Ain | CVA |
| CVE Colleges | Cyan | Cyanide |
| Cyanobacteria | Cyanocitta cristata | Cyanocitta cristata bromia |
| Cyaxares | Cyaxares ang Dakila | Cyaxares the Great |
| Cyber grooming | Cyber-bullying | Cybering |
| Cyberkada | Cybersex | Cybill Lynne Shepherd |
| Cybill Shepherd | Cyborg | Cyborg (komiks) |
| Cycad | Cyclades | Cycling sa Palaro ng Timog Silangang Asya 2005 |
| Cycling sa Palaro ng Timog Silangang Asya 2007 | Cycling sa Palaro ng Timog Silangang Asya 2019 | Cycling sa Palaro ng Timog Silangang Asya taong 2005 |
| Cyclingsa Palaro ng Timog Silangang Asya 2007 | Cyclophosphamide | Cyclops (dula) |
| Cydonia | Cydonia oblonga | Cyganówka, Garwolin County |
