| Colorado | Colorado Springs, Colorado | Colorbar |
| Colorina | Colorno | Colors |
| Colors list | Colosimi | Colosseum |
| Colossus ng Rhodes | Colour | Colour force |
| Colour photograph | Colour photography | Colours |
| Colours list | Colt Brennan | Colton, California |
| Colturano | Colum Cille | Columba |
| Columba livia | Columba ng Iona | Columba palumbus |
| Columbia, South Carolina | Columbia, Vintar, Ilocos Norte | Columbian College |
| Columbian Dyip | Columbian Exchange | Columbian exchange |
| Columbidae | Columbio | Columbio, Sultan Kudarat |
| Columbkill | Columbus archipelago | Columbus College |
| Columbus, Georgia | Columbus, Ohio | Columcille |
| Columnae vertebralis | Colusa County, California | Colusa, California |
| Colverde | Colzate | Coma |
| Comabbio | Comacchio | Comadre |
| Comano (MS) | Comano Terme | Comano, Toscana |
| Comazzo | Comb jellies | Comb jelly |
| Combat engineer | Combat engineering | Combative |
| Combativeness | Combinatorics | Combined operations |
| Combretum indicum | Combustion | Combustion engine |
| Comcast | ComCast | Comcast Cable Communications Holdings Inc |
| Comcast Cable Communications Holdings, Inc. | Comcast Cable Communications Management, LLC | Comcast Communications |
| Comcast Communications Corporation | Comcast Corp. | Comcast Corporation |
| Comcast Holdings | Comcast Networks | Comcast Telecommunications, Inc. |
| Comcomloong, Currimao, Ilocos Norte | Come & Get It (awit) | Comedic studies |
| Comedy | Comedy Bar | Comedy Bites |
| Comedy Central Market | Comedy studies | Comelec |
| Comelico Superiore | Comerford | Comerio |
| Comet | Comezzano-Cizzago | Comfort (tatak ng Unilever) |
| Comic Neue | Comic Rex | Comic Sans |
| Comic sans | Comic studies | Comico |
| Comics | ComicsOne | Comida |
| Comignago | Coming Home | Coming Home (pelikula) |
| Coming Out Day | Comiso | Comité International Olympique |
| Comitini | Comiziano | Command |
| Command & Conquer: Red Alert 2 | Commandment | Commandments |
| Commando Uno | Commemoratio omnium Fidelium Defunctorum | Commerce, California |
| Commercial broadcasting | Commercial Television | Commessaggio |
| Commezzadura | Commission on Elections | Commission on Elections (Philippines) |
| Commission on Filipino Language | Commission on Higher Education (Philippines) | Commission on Human Rights of the Philippines |
| Commission on the Filipino Language | Commodore Josaia Voreqe Bainimarama | Commodus |
| Common buckwheat | Common cold | Common colds |
| Common Era | Common ficus | Common fig |
| Common fig tree | Common guava | Common marshmallow |
| Common myrtle | Common Nightingale | Common octopus |
| Common pastinaca | Common People | Common quail |
| Common quails | Common sense | Common worm wood |
| Common worm-wood | Common wormwood | Commonwealth |
| Commonwealth (United States insular area) | Commonwealth avenue | Commonwealth Avenue |
| Commonwealth Avenue, Quezon City | Commonwealth ng Pilipinas | Commonwealth of Independent States |
| Commonwealth of Kentucky | Commonwealth of Massachusetts | Commonwealth of Nations |
| Commonwealth of the Philippines | Commonwealth Realm | Commonwealth realm |
| Commonwealth realms | Commotio cordis | Commune |
| Communes ng Ain | Communes ng Aisne | Communicate |
| Communication | Communication Arts | Communication theory |
| Communications | Communion | Communism |
| Communist Manifesto | Communist nation | Communist Party of China |
| Communist Party of India (Marxist) | Communist Party of Nepal (Unified Marxist-Leninist) | Communist Party of the Philippines |
| Communist Party of the Soviet Union | Communist state | Community |
| Community development | Community of Navarre | Community Pantry |
| Community pantry | Community service | Community tax certificate |
| Commuter area | Commuter belt | Commuting satellite |
| Como | Como (lalawigan) | Como (lungsod) |
| Como La Flor (song) | Como, Lombardia | Como, Lombardy |
| Comodo | Comor | Comoras |
| Comorian | Comoriana | Comoriano |
| Comoro | Comoros | Comoros Republic |
| Comoros Union | Compañero Y Compañera | Compact cassette |
| Compact Cassette | Compact disc | Compact disk |
| Compacta | Compacta (estilo ng titik) | Compactification (physics) |
| Compadrazgo | Compadre | Comparative anatomist |
| Comparative anatomy | Comparative economic systems | Comparative economics |
| Comparative literature | Comparative military systems | Comparative religion |
| Compared religions | Compass | Compensate |
| Compensation | Compete | Competing |
| Competition | Competitive | Competitor |
| Compiano | Compiler | Complaint |
| Complement (set theory) | Completely (album) | Complex number |
| Compose | Composer | Compositae |
| Composition | Compositor | Compostela |
| Compostela Valley | Compostela, Cebu | Compostela, Compostela Valley |
| Compostela, Davao de Oro | Compound | Compound ng mga Kennedy |
| Comprehensive Agrarian Reform Program | Comprehensive Nuclear-Test-Ban Treaty | Compress |
| Compression | Compression bandage | Compsognathidae |
| Compsognathus | Compsohalieus | Compton, California |
| Computability theory | Computation | Computational chemistry |
| Computational complexity theory | Computational mathematics | Computational physics |
| Compute | Computer | Computer display |
| Computer engineer | Computer engineering | Computer graphics |
| Computer hardware | Computer keyboard | Computer language |
| Computer monitor | Computer mouse | Computer network |
| Computer networking | Computer prank | Computer program |
| Computer programming | Computer science | Computer sciences |
| Computer scientist | Computer scientists | Computer screen |
| Computer sex | Computer software | Computer softwares |
| Computer speaker | Computer speakers | Computer Virus |
| Computing | Computus | Compvtvs |
| Comun Nuovo | Comunanza | Comune |
| Comune di Aisone | Comuni | Comunidad Foral de Navarra |
