The West African Economic and Monetary Union (also known as UEMOA from its name in French, Union économique et monétaire ouest-africaine) is an organization of eight West African states. It was established to promote economic integration among countries that share the CFA franc as a common currency. UEMOA was created by a Treaty signed at Dakar, Senegal, on 10 January 1994, by the heads of state and governments of Benin, Burkina Faso, Côte d’Ivoire, Mali, Niger, Senegal, and Togo. On 2 May 1997, Guinea-Bissau, a former Portuguese colony, became the organization’s eighth (and only non-Francophone) member state.

UEMOA is a customs union and currency union between the members of ECOWAS.