| City | Country |
|---|---|
| Capitol Hill | Northern Mariana Islands |
| Chiba | Japan |
| Cebu City | Philippines |
| Coimbatore | India |
| Campo Grande | Brazil |
| Cancun | Mexico |
| Chihuahua | Mexico |
| Cheongju | South Korea |
| Culiacan | Mexico |
| Chaohucun | China |
| Cencheng | China |
| Changhua | Taiwan |
| Ciudad Guayana | Venezuela |
| Cucuta | Colombia |
| Chengguan | China |
| Comodoro Rivadavia | Argentina |
| Cagayan de Oro | Philippines |
| Changsha | China |
| City of Paranaque | Philippines |
| Chengxiang | China |
| Ch'ongjin | North Korea |
| Catia La Mar | Venezuela |
| Contagem | Brazil |
| Ch'onan | South Korea |
| Cochabamba | Bolivia |
| Changping | China |
| Chimalhuacan | Mexico |
| Cuttack | India |
| Cimahi | Indonesia |
| Chanda | India |
| Chuxiong | China |
| Cuiaba | Brazil |
| Ciudad Bolivar | Venezuela |
| Chiclayo | Peru |
| Cabinda | Angola |
| City of Calamba | Philippines |
| Chang'an | China |
| Ciudad Apodaca | Mexico |
| Carrefour | Haiti |
| Choloma | Honduras |
| Chimbote | Peru |
| Chengjiao | China |
| Ciudad Lopez Mateos | Mexico |
| Celaya | Mexico |
| Cheboksary | Russia |
| Chiniot | Pakistan |
| Campos | Brazil |
| Calabar | Nigeria |
| Cranbourne | Australia |
| Constantine | Algeria |