Gyaman (also spelled Jamang and Gyaaman) was a medieval Akan state, located in what is now the Bono region of Ghana and Ivory Coast.
According to oral tradition, Gyaman was founded by the Bono, Aduana clan, a branch of the Akan, in the late 17th century.
[2] Before European colonial administration in the late 19th century, the Gyaman king, known as the Gyamanhene, sat in Amanvi, although four provincial chiefs held the kingdom's real power.
The economy centered on the capital Sampa and the Dyula market town of Bonduku in modern-day Ivory Coast.
In 1888, Gyaman king Agyeman signed a treaty of protection with France, but the French failed to establish a post in the kingdom, leaving it vulnerable to Samori's 1895 invasion.