| Cotswolds | Cottage cheese | Cottbus |
| Cottesmore | Cotton-Moutonov pojav | Cottrell |
| Coturnix coturnix | CouchSurfing | Coucouron |
| Coucy, Ardennes | Coucy-le-Chateau-Auffrique | Coucy-le-Château-Auffrique |
| Coudekerque-Branche | Coudenberg | Coudures |
| Coufee | Couffé | Couffe |
| Couiza | Coulibaly | Coulomb |
| Coulomb (razločitev) | Coulombov zakon | Coulombova konstanta |
| Coulombova konstanta sile | Coulombova sila | Council of Europe |
| Council of the Baltic Sea States | Counter-Strike | Country |
| Country glasba | Country rock | County of Kent, Anglija |
| Coup d'état | Couperin | Cour d'honneur |
| Couranta | Courante | Courçon |
| Courbevoie | Courcon | Cours Mirabeau |
| Coursan | Coursegoules | Coursera |
| Courtavon | Courteney Cox | Courtney Cox |
| Courtney Cox Arquette | Courtney Love | Courtney William Fladgate |
| Courville-sur-Eure | Coutances | Couto |
| Coutras | Couvron et Aumencourt | Couvron-et-Aumencourt |
| COVAX | Covăciţa | Covedo |
| Covent Garden | Coventry | Coventry (razločitev) |
| Coventry Climax | Cover point (hokej na ledu) | Coverpoint (hokej na ledu) |
| Covid 19 | Covid-19 | COVID-19 |
| COVID-19 testiranje | COVID-19 v Sloveniji | Cowan |
| Cowboy Style | Coworking | Cowperjeva žleza |
| COX | Cox | Coxa |
| Coxae | Coxeter-Dinkinov diagram | Coxeter-Dynkinov diagram |
| Coxeter–Dynkinov diagram | Coxeterjev element | Coxeterjeva grupa |
| Coxeterjeva matrika | Coxeterjeva notacija | Coxeterjevo število |
| Coxiella burnetii | Coxsone Dodd | Coyhaique |
| Cozes | Cozzano | CP |
| CPD−24° 6723 | CPD−52° 7028 | CPE |
| CPLP | CPR-1000 | CPU |
| CPUPI | CPV | CQB |
| Cr | CR | Crabbe in Goyle |
| Crac de Chevaliers | Crack | Cradle of Filth |
| Crago vulgaris | Craig Bellamy | Craig Breslow |
| Craig Conroy | Craig Douglas Bellamy | Craig Harrison (ostrostrelec) |
| Craig Mazin | Craig Parnham | Craig Steadman |
| Craig Thompson | Cramerjevo pravilo | Cranberries |
| Cranberry Saw Us | Crangon crangon | Crangon maculatus |
| Crangon maculosa | Crangon rubropunctatus | Crangon vulgaris |
| Craniata | Cranopsis periglenes | Craonne |
| Craponne-sur-Arzon | Crassulaceae | Crastatt |
| Crataegus | Crataegus elegans | Crataegus laevigata |
| Crataegus monogyna | Crataegus nigra | Crataegus oxyacantha |
| Crataegus pyracantha | Cravero | Cravero (Kravar) |
| Crawford | Crawford Long | Crawford W. Long |
| Crawford Williamson Long | Crazier (pesem, Taylor Swift) | Crazy Horse |
| Crčevo | Crème brûlée | Crécy |
| Crécy-sur-Serre | Crémieu | Créon |
| Créon-d'Armagnac | Créteil | CRC |
| Crcavac | Creative Commons | CreativeCommons |
| Crecy | Crecy-sur-Serre | Credo |
| Credo, quia absurdum est | Cree Inc. | Creed |
| Creedence Clearwater Revival | Creighton Abrams | Creighton Abrams Jr. |
| Creighton Abrams mlajši | Creighton W. Abrams | Creighton W. Abrams Jr. |
| Creighton W. Abrams mlajši | Creighton Williams Abrams Jr. | Creighton Williams Abrams Junior |
| Creighton Williams Abrams mlajši | Creil | Creina |
| Creme brulee | Cremieu | Cremona |
| Cremona (pokrajina) | Cremušina | Creon |
| Creon-d'Armagnac | Crepaja | Cres |
| Cres (mesto) | Cres (otok) | Cres (razločitev) |
| Cres, Cres | Crescendo | Crescentia cujete |
| Crescenzio Sepe | Crest | Crestor |
| Cret | Cret (razločitev) | Cret Bizovački |
| Cret Viljevski | Crete Senesi | Creteil |
| Creully | Creuse | Creuse (departma) |
| Creuse (reka) | Creutzfeld-Jakobova bolezen | Creutzfeldt-Jakobova bolezen |
| Crevan | Crevarska Strana | Crex crex |
| CRH | CRH380A | Crhalj |
| Crişul Alb | Crişul Negru | Cricetinae |
| Cricetus cricetus | Crișul Alb | Crișul Negru |
| Crișul Repede | Crikvenica | Crikvenica - klimatsko zdravilišče |
| Crimen sollicitationis | Crimes and Misdemeanors | Crimes of the Heart |
| Crinoidea | Crisanto Luque Sánchez | Crispin Glover |
| Crispin Hellion Glover | CRISPR | CRISPR-Cas |
| CRISPR-Cas9 | CRISPR/Cas | CRISPR/Cas9 |
| Cristache Gheorghiu | Cristache Gherorghiu | Cristóbal Diatristán de Acuña |
| Cristeana Cojocaru | Cristeana Matei | Cristian Chivu |
| Cristian Eugen Chivu | Cristian Gaţu | Cristian Gațu |
| Cristian Gonzalez | Cristian González | Cristian Mandeal |
| Cristian Pavón | Cristiano da Matta | Cristiano Da Matta |
| Cristiano Monteiro da Matta | Cristiano Ronaldo | Cristieana Cojocaru |
| Cristieana Cojocaru-Matei | Cristina Casandra | Cristina Elisabet Fernández |
| Cristina Fernandez de Kirchner | Cristina Fernández de Kirchner | Cristina Iloc |
| Cristina Iloc-Casandra | Cristina Tisot | Cristinacce |
| Cristofano Malvezzi | Cristoforo Giacobazzi | Crisul Alb |
| Crisul Negru | Critérium du Dauphiné | Critérium du Dauphiné Libéré |
| Critchfield | Criterium du Dauphine | Criterium du Dauphine Libere |
| Crithagra miliaria | Crivac | CRJ |
| CRJ100 | CRJ200 | Crklada |
| Crklica | Crklje | Crkovec |
| Crkovnica | Crkvari | Crkvenac |
| Crkveni Bok | Crkveni Toci | Crkveni Vrhovci |
| Crkvenik | Crkvičko Polje | Crkvica (otok) |
| Crkvice | Crkvice, Srbija | Crkvina (otok) |
| Crkvina, Kruševac | Crkvine | Crkvine (razločitev) |
| Crkvine, Črna gora | Crkvine, Mladenovac | Crkvine, Tutin |
| Crljenac | Crljenci | Crljenice |
