| Clubhouse Games: 51 Worldwide Classics | Clusone | Cluster 5 |
| Clytemnestra | CMCSA | Cmd.exe |
| CN | CN·POMPEIVS·CN·F·SEX·N·MAGNVS | CNBC |
| CNCO | CnH2n | Cnidaria |
| Cnidarian | Cnidariano | CNN |
| CNN Heroes | CNN Heroes: An All-Star Tribute | CNN Philippines |
| Cnosos | Cnossus | CNS |
| CNY | Co-ordinate | Co-ordinate system |
| CO2 | COA | Coacalco |
| Coach | Coachella, California | Coahuila |
| Coal | Coalinga, California | Coassolo Torinese |
| Coastal Road | Coaster | Coaster trout |
| Coasters | Coat of many colors | Coat of many colours |
| Coatzacoalcos | Coazze | Coazzolo |
| Cobalt | Cobán Cathedral | Cobra |
| Cobra (paglilinaw) | Coca cola | Coca Cola Tigers |
| Coca-Cola | Coca-cola | Coca-Cola FEMSA Philippines |
| Coca-Cola Tigers | Coccaglio | Cocconato |
| Cochinchina | Cochlearidae | Cocido |
| Cock fight | Cock sauce | Cock-fight |
| Cockatoo | Cockatoo (katala) | Cockatrice |
| Cockfight | Cockneys vs Zombies | Cockroach |
| Cocktail | Cocktails | CockyBoys |
| Coco (tradisyong-pambayan) | Coco Chanel | Coco Evangelista |
| Coco Lee | Coco Levy Fund Scam | Coco Martin |
| Coconut | Coconut milk | Cocoon |
| Cocoons | Cocorná | Cocorná (Antioquia) |
| Cocos (kapuluan) | Cocos (Keeling) | Cocos (Keeling) Islands |
| Cocos (Keeling) Islands Territory | Cocos Islands | Cocos Islands Territory |
| Cocos nucifera | Cocozza | Cocquio-Trevisago |
| Cocullo | Cod | Cod fish |
| Cod-fish | Codazzi | Code |
| Code of Hammurabi | Codename: Asero | Codename: Kids Next Door |
| Codename: Verano | Codevigo | Codevilla |
| Codex Gigas | Codex Hammurabi | Codex leningradensis |
| Codex Sinaiticus | Codex Vaticanus | Codex Vaticanus Graecus 1209 |
| Codfish | Codigoro | Codognè |
| Codogné | Codogno | Codrongianos |
| Cody & Zack | Cody and Zack | Cody at Zack |
| Cody Cameron | Cody Fern | Cody Martin & Zack Martin |
| Cody Martin and Zack Martin | Cody Martin at Zack Martin | Coefficient |
| Coelacanth | Coeliotomy | Coeln |
| Coelom | Coelomata | Coelomate |
| Coelurosauria | Coerce | Coerced |
| Coercion | Coeus | COEX Sentro ng Eksibisyon at Konbensyon |
| COEX Sentro ng Eksibisyon at Kumbensiyon | Coffea | Coffea liberica |
| Coffee | Coffee Prince | Coffer |
| Coffin Joe | Coggiola | Cogie Domingo |
| Cogliate | Cogne | Cognition |
| Cognitive | Cognitive process | Cognitive psychology |
| Cognitive science | Cogollo del Cengio | Cogon |
| Cogon (paglilinaw) | Cogon ,Palo, Leyte | Cogon grass |
| Cogon Palo, Leyte | Cogon, Palo, Leyte | Cogon-grass |
| Cogongrass | Cogua | Cogua, Cundinamarca |
| Cohabit | Cohabitate | Cohabitating |
| Cohabitation before marriage | Cohabitation prior to marriage | Cohete |
| Coil | Coiled coil | Coiler |
| Coimbatore | Coin | Coinage |
| Coitophobia | Coitus | Coitus interruptus |
| Coitus more ferarum | Coitus reservatus | Coix lacryma-jobi |
| Coji-Coji | Coke | Coke Studio |
| Coke Studio: Homecoming | Col | Col. Charles Young |
| Cola | Cola (paglilinaw) | Cola di Rienzo |
| Colazza | Colón | Colón ng Costa Rica |
| Colón, Nariño | Colón, Putumayo | Colbordolo |
| Colchester | Cold | Cold affusion |
| Cold dark matter model with dark energy | Cold Shoulder | Cold War |
| Coldness | Coldplay | Coleen Perez |
| Colegiata de San Isidro, Madrid | Colegio de Amore | Colegio de la Purisima Concepcion |
| Colegio de Los Baños | Colegio de San Francisco Javier | Colegio de San Jose |
| Colegio de San Juan de Letran | Colegio de San Lorenzo | Colegio de San Pascual Baylon |
| Colegio de San Pedro | Colegio de Santa Catalina de Alejandria | Colegio de Santa Monica |
| Colegio de Santa Rita | Colegio de Santo Niño de Jasaan | Colegio de Sto. Niño de Cabuyao |
| Colegio del Beaterio | Colegio del Sagrado Corazon de Jesus | Colegio San Agustin |
| Coleoptera | Colere | Coleto |
| Colette Bangert | Coleus | Colewort |
| Colewyrt | Colfax, California | Colfelice |
| Colgate | Colgate (tatak) | Colgate-Palmolive |
| Coli, Emilia-Romaña | Coli, Emilia-Romagna | Colico |
| Coliflor | Coligny, Ain | Colima |
| Colin McRae | Colinabo | Collalto Sabino |
| Collar bone | Collar-bone | Collarbone |
| Collard | Collard green | Collard greens |
| Collards | Collarmele | Collazzone |
| Collège de France | Colle Brianza | Colle d'Anchise |
| Colle di Tora | Colle di Val d'Elsa | Colle San Magno |
| Colle Sannita | Colle Santa Lucia | Colle Umberto |
| Collebeato | Collecchio | Collecorvino |
| Collective agreement | Collective bargaining agreement | Collectivism |
| Colledara | Colledimacine | Colledimezzo |
| Colleen Balinger | Colleen Ballinger | Colleferro |
| College | College Editors Guild of the Philippines | College of Divine Mercy |
| College of Fine Arts in UP Diliman | College of Maasin | College of Pontiffs |
| College of Popes | College of Saint Scholastica | College of St Scholastica |
| College of St. Scholastica | College of Technological Sciences | College of the Divine Mercy |
| College of the Holy Spirit | College of the Holy Spirit of Manila | College of the Immaculate Conception |
| College of William & Mary | College rock | Colleges of the Republic |
| Collegio Clementino | Collegio Ghislieri (Roma) | Collegio Teutonico |
| Collegiove | Collegium Pontificum | Collegno |
| Collelongo | Collepardo | Collepasso |
