  | 
Cambodia | 
 Khmer (official), French, English | 
  | 
Cameroon | 
 French and English (both official); 24 major African language groups | 
  | 
Canada and Provincial flags | 
 English, French (both official) | 
  | 
Cape Verde | 
 Portuguese, Criuolo | 
  | 
Cayman Islands | 
 English | 
  | 
Central African Republic | 
 French (official), Sangho, Arabic, Hansa, Swahili | 
  | 
Chad | 
 French and Arabic (official), more than 100  tribal languages | 
  | 
Chile | 
 Spanish | 
  | 
China | 
 Chinese, Mandarin, also local dialects | 
  | 
Christmas Island | 
 English | 
  | 
Colombia | 
 Spanish | 
  | 
Comoros | 
 French and Arab (both official), Shaafi Islam (Swahili dialect), Malagasu | 
  | 
Congo-Brazzaville Republic | 
French (official), Lingala, Kikongo, others | 
  | 
Congo-Kinshasa (Zaire), The Democratic Republic of the  | 
French (official), Swahili, Lingala, Ishiluba, Sudanic tribal languages, Kikongo, and others | 
  | 
Cook Islands | 
 English | 
  | 
Costa Rica | 
 Spanish | 
  | 
Croatia | 
 What was once known as Serbo-Croatian is now known as Serbian, Croatian, or Bosnian, depending on the speaker's political and ethnic affiliation | 
  | 
Cuba | 
 Spanish | 
  | 
Cyprus | 
 Greek (official), Turkish (official), English is widely spoken | 
  | 
Czech Republic | 
 Czech; Slovak minority |