Kogo[1] (Spanish: [ˈkoɣo] ⓘ, also known as Cogo or Koszho, formerly Puerto Iradier) is a remote town on the Muni estuary in Río Muni, Equatorial Guinea, lying east of Acalayong.

Both the Congüe and the Mitemele Rivers drain the Muni Estuary, sometimes giving the city of Kogo the shape and appearance of an island when in fact it is a peninsula.

Most of the population, especially the coastal population heavily rely on subsistence fishing and the Muni estuary was a major source of income as it was the gateway for passengers traveling to neighboring Gabon.

Kogo is the home town of internationally recognized doctor and political activist, Wenceslao Mansogo.

Chromosome 6, a 1997 novel by writer Robin Cook, takes place in Kogo.