The Roman Catholic Diocese of Banfora () is a diocese located in the city of Banfora in the ecclesiastical province of Bobo-Dioulasso in Burkina Faso.
On June 27, 1998, it was established as the diocese of Banfora from territory of the diocese of Bobo-Dioulasso.
On January 19, 2021, Rodrigue Sanon, a priest of the diocese, vanished on his way to meet with bishop Lucas Sanou. His body was found in a forest, about away, on January 21. The bishops of Burkina Faso have denounced violence by Muslim extremist militias.
The cathedral is the Cathédrale Saint-Pierre in Banfora.