| Coris batuensis | Coris caudimacula | Coris cuvieri |
| Coris dorsomacula | Coris flavovittata | Coris gaimard |
| Coris julis | Coris monspeliensis | Coris picta |
| Coris pictoides | Coris roseoviridis | Coris variegata |
| Coris venusta | Cork (material) | Cork borer |
| Cork City F.C. | Corleone | Cormont |
| Cormoran Strike | Corn allergy | Corn Belt |
| Corn da Camp | Corn da Tinizong | Corn oil |
| Corn starch | Corn stover | Corn syrup |
| Corn tortilla | Corn, Oklahoma | Cornaceae |
| Cornale | Cornales | Cornanae |
| Corne de Sorebois | Cornea | Cornea plana |
| Cornea plana 1 | Cornea plana 2 | Corneal abrasion |
| Corneal epithelium | Corneal limbus | Corneal ulcer |
| Corned beef | Corneille Heymans | Cornelia de Lange Syndrome |
| Cornelia Funke | Cornelia, Georgia | Cornelis Kalkman |
| Corneliu Papură | Corneliu Robe | Cornelius the Centurion |
| Cornelius Van Alen Van Dyck | Cornelius Vanderbilt | Cornelius, North Carolina |
| Cornelius, Oregon | Cornell Glen | Cornell Township, Michigan |
| Cornell University | Cornell, Illinois | Cornell, Wisconsin |
| Corner kick | Cornerstone | Cornersville, Tennessee |
| Cornettes de Bise | Corniche | Cornidae |
| Corning (city), New York | Corning, Arkansas | Corning, Iowa |
| Corning, Kansas | Corning, Missouri | Corning, Ohio |
| Corning, Wisconsin | Cornish Rex | Cornish, Maine |
| Cornish, New Hampshire | Cornish, Oklahoma | Cornish, Utah |
| Cornlea, Nebraska | Cornmeal | Corno Campascio |
| Corno di Gesero | Cornu aspersum | Cornu spiral |
| Cornucopia | Cornus | Cornus mas |
| Cornus meyeri | Cornus sanguinea | Cornville, Maine |
| Cornwall | Cornwall, Connecticut | Cornwall, New York |
| Cornwall, Vermont | Corolla | Corollary |
| Corona | Corona (footballer) | Corona Australis |
| Corona Borealis | Corona di Redorta | Corona ring |
| Corona, New Mexico | Corona, South Dakota | Coronado, California |
| Coronagraph | Coronal loop | Coronal plane |
| Coronary artery bypass surgery | Coronary artery disease | Coronary care unit |
| Coronary circulation | Coronary flow reserve | Coronary ischemia |
| Coronary ostial stenosis | Coronary reflex | Coronary sinus |
| Coronatae | Coronation | Coronaviridae |
| Coronavirus | Coroner | Coronilla |
| Coronilla atlantica | Coronilla aurantiaca | Coronilla coronata |
| Coronilla emerus | Coronilla hispanica | Coronilla iberica |
| Coronilla juncea | Coronilla minima | Coronilla myrtifolia |
| Coronilla pubescens | Coronilla ramosissima | Coronilla repanda |
| Coronilla scorpioides | Coronilla stipularis | Coronilla vaginalis |
| Coronilla valentina | Coronilla viminalis | Coronoid process |
| Corophiidea | Corpa | Corpora |
| Corpora amylacea | Corporate capabilities package | Corporate farming |
| Corporate finance | Corporate governance | Corporate governance of information technology |
| Corporate identity | Corporate liability | Corporate recovery |
| Corporate social entrepreneurship | Corporate social responsibility | Corporate tax |
| Corporate transparency | Corporation | Corporatism |
| Corpse Bride | Corpus | Corpus allatum |
| Corpus callosum | Corpus cavernosum penis | Corpus Christi, Texas |
| Corpus linguistics | Corpus luteum | Corrado Gini |
| Corrado Guzzanti | Corral City, Texas | Corral de Almaguer |
| Correction fluid | Correctional medicine | Correctionville, Iowa |
| Corrective and preventive action | Corrective lens | Corrective rape |
| Correll, Minnesota | Corriere della Sera | Corrigan, Texas |
| Corrosion | Corrosion engineering | Corrosive |
| Corrosive substance | Corruption | Corruption in Cameroon |
| Corruption Perceptions Index | Corry Evans | Corry, Pennsylvania |
| Corsa | Corset | Corsica, South Dakota |
| Corsicana, Texas | Corteolona | Cortex (anatomy) |
| Cortez, Colorado | Cortical lobule | Cortical spreading depression |
| Corticata | Corticon | Corticosteroid |
| Corticotropin-releasing factor family | Corticotropin-releasing hormone | Corticoviridae |
| Corticovirus | Cortisol | Cortisol awakening response |
| Cortland, Illinois | Cortland, Nebraska | Cortland, New York |
| Cortland, Ohio | Cortlandville, New York | Corumbá |
| Corundum | Corunna, Indiana | Corunna, Michigan |
| Corvidae | Corviglia | Corvin Castle |
| Corvino San Quirico | Corvoidea | Corvus |
| Corvus (constellation) | Corvus albus | Corvus brachyrhynchos |
| Corvus caurinus | Corvus corax | Corvus cornix |
| Corvus corone | Corvus coronoides | Corvus frugilegus |
| Corvus hawaiiensis | Corvus monedula | Corvus ossifragus |
| Corvus rhipidurus | Corvus ruficollis | Corvus splendens |
| Corwin, Ohio | Corwith Township, Michigan | Corwith, Iowa |
| Cory | Cory Edwards | Cory Gibbs |
| Cory Jefferson | Cory Monteith | Corybas |
| Coryciinae | Corycium | Corycium alticola |
| Corycium bicolorum | Corycium bifidum | Corycium carnosum |
| Corycium crispum | Corycium deflexum | Corycium excisum |
| Corycium flanaganii | Corycium microglossum | Corycium mundii |
| Corycium nigrescens | Corycium orobanchoides | Corycium patersoniae |
| Corycium tricuspidatum | Corycium vestitum | Corydon sumatranus |
| Corydon, Indiana | Corydon, Iowa | Corydon, Kentucky |
| Corydoras | Corydoras adolfoi | Corydoras aeneus |
| Corydoras paleatus | Corylus | Corylus americana |
| Corylus avellana | Corylus colurna | Corynebacteriaceae |
| Corynebacterineae | Corynebacterium | Corynebacterium bovis |
| Corynebacterium canis | Corynebacterium casei | Corynebacterium caspium |
| Corynebacterium confusum | Corynebacterium diphtheriae | Corynebacterium durum |
| Corynebacterium flavescens | Corynebacterium genitalium | Corynebacterium glaucum |
| Corynebacterium lowii | Corynebacterium marinum | Corynebacterium minutissimum |
| Corynebacterium oculi | Corynebacterium pilosum | Corynebacterium propinquum |
| Corynebacterium pseudodiphtheriticum | Corynebacterium pseudotuberculosis | Corynebacterium simulans |
| Corynebacterium striatum | Corynebacterium ulcerans | Corynebacterium urealyticum |
