- .ca Canada
- .cab Cab
- .cafe Cafe
- .cam Camera
- .camera Camera
- .camp Camp
- .capetown Capetown, South Africa
- .capital Capital
- .car Car
- .cards Cards
- .care Care
- .career Career
- .careers Careers
- .cars Cars
- .casa Spanish for House
- .cash Cash
- .casino Casino
- .cat Catalan Community
- .catering Catering
- .catholic Catholic
- .cc Cocos Island
- .cd Democratic Republic of Congo
- .center Center
- .cf Central African Republic
- .cg Republic of Congo
- .ch Switzerland
- .charity Charity
- .chat Chat
- .cheap Cheap
- .christmas Christmas
- .church Church
- .ci Cote D' Ivoire
- .city City
- .ck Cook Islands
- .cl Chile
- .claims Claims
- .cleaning Cleaning
- .click Click
- .clinic Clinic
- .clothing Clothing
- .cloud Cloud
- .club Club
- .cm Cameroon
- .cn China
- .co Colombia
- .codes Codes
- .coffee Coffee
- .college College
- .cologne Cologne, Germany
- .com Generic
- .community Community
- .company Business
- .computer Computer
- .comsec Communication Security
- .condos Condos
- .construction Construction
- .consulting Consulting
- .contact Contact
- .contractors Contractors
- .cooking Cooking
- .cool Cool
- .coop COOP Domains
- .corp Corporate
- .corsica French Island
- .country Country
- .coupon Coupon
- .coupons Coupons
- .cpa Certified Professional Accountant
- .cr Costa Rica
- .credit Credit
- .creditcard Credit Card
- .creditunion Credit Union
- .cricket Cricket
- .cruises Cruises
- .cs Serbia
- .cu Cuba
- .cv Cape Verde
- .cw Curaçao
- .cx Christmas Islands
- .cy Cyprus
- .cymru Wales, United Kingdom
- .cz Czech Republic
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