Compendium of postage stamp issuers (Co–Cz)

This entry provides a list of entities that have issued postage stamps, alphabetically ordered from "Co" to "Cz". Information included may vary depending on available data and may be limited to the primary issuing authority. Further research may be required for a comprehensive understanding of each entity's philatelic history.

{| class="wikitable" |+ List of Postage Stamp Issuers (Co-Cz) |- ! Issuer ! Notes |- | Cocos (Keeling) Islands | A territory of Australia, its postal history is intricately linked to Australia's. |- | Colombia | A significant South American nation with a long and rich postal history. |- | Comoros | An island nation in the Indian Ocean with a relatively modern postal history. |- | Congo, Democratic Republic of the | Formerly Zaire, with a complex postal history reflecting its political changes. |- | Congo, Republic of the | A separate nation from the Democratic Republic of the Congo, also known as Congo-Brazzaville. |- | Cook Islands | A self-governing state in free association with New Zealand. |- | Costa Rica | A Central American country with a well-documented postal history. |- | Côte d'Ivoire | A West African nation, also known as Ivory Coast. |- | Croatia | A nation with a postal history encompassing its time within Yugoslavia and its subsequent independence. |- | Cuba | A Caribbean island nation with a lengthy and complex postal history. |- | Cyprus | An island nation in the Eastern Mediterranean, with a postal history influenced by its colonial past. |- | Czech Republic | A nation with a postal history that incorporates its time within Czechoslovakia and its post-1993 history as an independent state. |- | Czechoslovakia | While no longer an independent nation, it is crucial to include Czechoslovakia, as its postal history is distinct and informs the philately of both the Czech Republic and Slovakia. |}

It is important to note that this list is not exhaustive and further research is encouraged to gain a complete understanding of each entity's postage stamp issuances. Numerous smaller entities, provisional governments, and occupied territories may also have issued stamps, but are beyond the scope of this concise compendium.