Cocos (Keeling) Islands:
Australian dollar (AUD)

Colombia:
Colombian peso (COP)

Comoros:
Comoran franc (KMF)

Congo, Democratic Republic of the:
Congolese franc (CDF)

Congo, Republic of the:
Communaute Financiere Africaine franc (XAF);
note - responsible authority is the Bank of the Central African
States

Cook Islands:
New Zealand dollar (NZD)

Costa Rica:
Costa Rican colon (CRC)

Cote d'Ivoire:
Communaute Financiere Africaine franc (XOF); note -
responsible authority is the Central Bank of the West African States

Croatia:
kuna (HRK)

Cuba:
Cuban peso (CUP)