Mensa Bonsu (c. 1840 – c. 1896) was the tenth king of the Ashanti Empire, from 1874 until his forced abdication on 8 March 1883.

[2] He became Asantehene (king of the Asante) after his elder brother Kofi Kakari was deposed in September 1874.

[3] However, he did not make himself popular with contemporaries: "Chronically short of revenue, and personally avaricious (for women as well as gold), King Asantehene Mensa Bonsu carried punitive exactions to new and insupportable levels.

Asantehene Mensa Bonsu died in British captivity in 1896 and was succeeded to the throne by heir apparent Kwaku Dua II of the Kingdom of Asante.

In 1911, Mensa Bonsu's corpse was disinterred for ceremonial burial at the Asante capital city, Kumasi.