Biwong-Bulu is a town and commune in the Mvila department of the South Region of Cameroon.
The name Biwong-Bulu is derived from "Bulu", the name of the main ethnic group of the area, and "Biwong", the Bulu phrase "to gather something rare".
The Biwong-Bulu commune was created from the splitting of the former Ebolowa Rural Commune by presidential decree on April 24, 2007.
Biwong-Bulu has an area of . The terrain is largely flat, with plains and plateaus and a few hills.
The commune is home to 34,374 inhabitants, resulting in a population density of .
Biwong-Bulu has a tropical climate. Rainfall is usually between per year. The temperature is warm year-round, hovering around .