Republic of the Congo     Democratic Republic of the Congo

Congo is a name shared by two neighbouring countries in Central Africa, largely drained by the Congo River, and usually distinguished by their full official names and occasionally by adding their capital cities. The name was also used in prior political entities. It also refers to the African subregion drained by the Congo River, located between the Gulf of Guinea and the African Great Lakes.

"The Congos" may be used to refer to both countries. The adjective "Congolese" (as in "Congolese music" or "Congolese culture") can refer to either or both countries.

Historically geographic uses of Congo and the alternate spelling "Kongo" include: