Buyo Department is a department of Nawa Region in Bas-Sassandra District, Ivory Coast.

In 2021, its population was 176,568 and its seat is the settlement of Buyo.

The sub-prefectures of the department are Buyo and Dapéoua.

Buyo Department and Méagui Department were created in 2012 by dividing Soubré Department.

This Bas-Sassandra District location article is a stub.